5515744157280 has 1920 divisors, whose sum is σ = 24127885393920. Its totient is φ = 1159019642880.

The previous prime is 5515744157267. The next prime is 5515744157299. The reversal of 5515744157280 is 827514475155.

5515744157280 is a `hidden beast` number, since 5 + 5 + 1 + 57 + 441 + 5 + 72 + 80 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 17399823682 + ... + 17399823998.

It is an arithmetic number, because the mean of its divisors is an integer number (12566606976).

Almost surely, 2^{5515744157280} 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 5515744157280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12063942696960).

5515744157280 is an abundant number, since it is smaller than the sum of its proper divisors (18612141236640).

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

5515744157280 is a wasteful number, since it uses less digits than its factorization.

5515744157280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 5515744157280 in words is "five trillion, five hundred fifteen billion, seven hundred forty-four million, one hundred fifty-seven thousand, two hundred eighty".