18056525499087 has 16 divisors (see below), whose sum is σ = 24366378546048. Its totient is φ = 11892189327840.

The previous prime is 18056525499053. The next prime is 18056525499149. The reversal of 18056525499087 is 78099452565081.

It is not a de Polignac number, because 18056525499087 - 2²⁷ = 18056391281359 is a prime.

It is a super-2 number, since 2×18056525499087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18056525499017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5073708 + ... + 7864830.

It is an arithmetic number, because the mean of its divisors is an integer number (1522898659128).

Almost surely, 2^{18056525499087} is an apocalyptic number.

18056525499087 is a deficient number, since it is larger than the sum of its proper divisors (6309853046961).

18056525499087 is a wasteful number, since it uses less digits than its factorization.

18056525499087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817190.

The product of its (nonzero) digits is 217728000, while the sum is 69.

The spelling of 18056525499087 in words is "eighteen trillion, fifty-six billion, five hundred twenty-five million, four hundred ninety-nine thousand, eighty-seven".