21016151570604 has 24 divisors (see below), whose sum is σ = 49040379372208. Its totient is φ = 7004999232000.

The previous prime is 21016151570581. The next prime is 21016151570639. The reversal of 21016151570604 is 40607515161012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47850397 + ... + 48287604.

Almost surely, 2^{21016151570604} is an apocalyptic number.

It is an amenable number.

21016151570604 is an abundant number, since it is smaller than the sum of its proper divisors (28024227801604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21016151570604 is a wasteful number, since it uses less digits than its factorization.

21016151570604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96156225 (or 96156223 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 21016151570604 in words is "twenty-one trillion, sixteen billion, one hundred fifty-one million, five hundred seventy thousand, six hundred four".