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5540449689600 = 21335274329959
BaseRepresentation
bin101000010011111110010…
…0010010010000000000000
3201121122212110112222022120
41100213330202102000000
51211233320110031400
615441125241004240
71111166336216640
oct120477442220000
921548773488276
105540449689600
1118467674574a1
12755939483680
133126014b2bc7
14152232b94520
15991be567ca0
hex509fc892000

5540449689600 has 672 divisors, whose sum is σ = 21423952112640. Its totient is φ = 1236896317440.

The previous prime is 5540449689521. The next prime is 5540449689659. The reversal of 5540449689600 is 69869440455.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184919421 + ... + 184949379.

It is an arithmetic number, because the mean of its divisors is an integer number (31880881120).

Almost surely, 25540449689600 is an apocalyptic number.

5540449689600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5540449689600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10711976056320).

5540449689600 is an abundant number, since it is smaller than the sum of its proper divisors (15883502423040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5540449689600 is a wasteful number, since it uses less digits than its factorization.

5540449689600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048 (or 30019 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 60.

The spelling of 5540449689600 in words is "five trillion, five hundred forty billion, four hundred forty-nine million, six hundred eighty-nine thousand, six hundred".