16587125522 has 54 divisors (see below), whose sum is σ = 29111318901. Its totient is φ = 7081525440.

The previous prime is 16587125521. The next prime is 16587125531. The reversal of 16587125522 is 22552178561.

It can be written as a sum of positive squares in 2 ways, for example, as 15180950521 + 1406175001 = 123211^2 + 37499^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=91069.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16587125521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34059563 + ... + 34060049.

Almost surely, 2^16587125522 is an apocalyptic number.

16587125522 is a deficient number, since it is larger than the sum of its proper divisors (12524193379).

16587125522 is an equidigital number, since it uses as much as digits as its factorization.

16587125522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 517 counting only the distinct ones).

The product of its digits is 336000, while the sum is 44.

The spelling of 16587125522 in words is "sixteen billion, five hundred eighty-seven million, one hundred twenty-five thousand, five hundred twenty-two".