16881525087 has 32 divisors (see below), whose sum is σ = 26177175552. Its totient is φ = 9477493344.

The previous prime is 16881525083. The next prime is 16881525097. The reversal of 16881525087 is 78052518861.

It is not a de Polignac number, because 16881525087 - 2² = 16881525083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16881525083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523218 + ... + 554544.

It is an arithmetic number, because the mean of its divisors is an integer number (818036736).

Almost surely, 2^16881525087 is an apocalyptic number.

16881525087 is a deficient number, since it is larger than the sum of its proper divisors (9295650465).

16881525087 is a wasteful number, since it uses less digits than its factorization.

16881525087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31787.

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 16881525087 in words is "sixteen billion, eight hundred eighty-one million, five hundred twenty-five thousand, eighty-seven".