11556870123575 has 48 divisors (see below), whose sum is σ = 16688222885376. Its totient is φ = 7774501737600.

The previous prime is 11556870123527. The next prime is 11556870123619. The reversal of 11556870123575 is 57532107865511.

It is a de Polignac number, because none of the positive numbers 2^k-11556870123575 is a prime.

It is a super-2 number, since 2×11556870123575² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11556870123575.

It is a congruent number.

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, 118884740 + ... + 118981910.

It is an arithmetic number, because the mean of its divisors is an integer number (347671310112).

Almost surely, 2^{11556870123575} is an apocalyptic number.

11556870123575 is a deficient number, since it is larger than the sum of its proper divisors (5131352761801).

11556870123575 is a wasteful number, since it uses less digits than its factorization.

11556870123575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110064 (or 110059 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 56.

The spelling of 11556870123575 in words is "eleven trillion, five hundred fifty-six billion, eight hundred seventy million, one hundred twenty-three thousand, five hundred seventy-five".