21476516616204 has 96 divisors (see below), whose sum is σ = 56061524252160. Its totient is φ = 6356181619200.

The previous prime is 21476516616199. The next prime is 21476516616227. The reversal of 21476516616204 is 40261661567412.

It is a super-2 number, since 2×21476516616204² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23192394 + ... + 24100625.

It is an arithmetic number, because the mean of its divisors is an integer number (583974210960).

Almost surely, 2^{21476516616204} is an apocalyptic number.

It is an amenable number.

21476516616204 is an abundant number, since it is smaller than the sum of its proper divisors (34585007635956).

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

21476516616204 is a wasteful number, since it uses less digits than its factorization.

21476516616204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47293151 (or 47293149 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 21476516616204 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred sixteen million, six hundred sixteen thousand, two hundred four".