15560591040 has 168 divisors, whose sum is σ = 53572915968. Its totient is φ = 4145541120.

The previous prime is 15560591023. The next prime is 15560591093. The reversal of 15560591040 is 4019506551.

15560591040 is a `hidden beast` number, since 1 + 5 + 5 + 60 + 591 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15560590986 and 15560591004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4234644 + ... + 4238316.

Almost surely, 2^15560591040 is an apocalyptic number.

15560591040 is a gapful number since it is divisible by the number (10) 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 15560591040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26786457984).

15560591040 is an abundant number, since it is smaller than the sum of its proper divisors (38012324928).

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

15560591040 is a wasteful number, since it uses less digits than its factorization.

15560591040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167 (or 5154 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 15560591040 in words is "fifteen billion, five hundred sixty million, five hundred ninety-one thousand, forty".