550983591109440 has 448 divisors, whose sum is σ = 1983483826410240. Its totient is φ = 143944473600000.

The previous prime is 550983591109433. The next prime is 550983591109543. The reversal of 550983591109440 is 44901195389055.

550983591109440 is a `hidden beast` number, since 5 + 5 + 0 + 9 + 83 + 5 + 9 + 1 + 109 + 440 = 666.

It is a super-2 number, since 2×550983591109440² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130204510 + ... + 134369570.

It is an arithmetic number, because the mean of its divisors is an integer number (4427419255380).

Almost surely, 2^{550983591109440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550983591109440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991741913205120).

550983591109440 is an abundant number, since it is smaller than the sum of its proper divisors (1432500235300800).

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

550983591109440 is a wasteful number, since it uses less digits than its factorization.

550983591109440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165399 (or 4165383 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 63.

The spelling of 550983591109440 in words is "five hundred fifty trillion, nine hundred eighty-three billion, five hundred ninety-one million, one hundred nine thousand, four hundred forty".