11556522542402 has 32 divisors (see below), whose sum is σ = 17471623963248. Its totient is φ = 5732812800000.

The previous prime is 11556522542387. The next prime is 11556522542459. The reversal of 11556522542402 is 20424522565511.

It can be written as a sum of positive squares in 8 ways, for example, as 3869439133921 + 7687083408481 = 1967089^2 + 2772559^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301867502 + ... + 301905782.

Almost surely, 2^{11556522542402} is an apocalyptic number.

11556522542402 is a deficient number, since it is larger than the sum of its proper divisors (5915101420846).

11556522542402 is a wasteful number, since it uses less digits than its factorization.

11556522542402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40406.

The product of its (nonzero) digits is 960000, while the sum is 44.

The spelling of 11556522542402 in words is "eleven trillion, five hundred fifty-six billion, five hundred twenty-two million, five hundred forty-two thousand, four hundred two".