18470560668 has 72 divisors (see below), whose sum is σ = 51983713152. Its totient is φ = 4999542048.

The previous prime is 18470560643. The next prime is 18470560727. The reversal of 18470560668 is 86606507481.

It is a super-2 number, since 2×18470560668² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18470560668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274230 + ... + 334877.

It is an arithmetic number, because the mean of its divisors is an integer number (721996016).

Almost surely, 2^18470560668 is an apocalyptic number.

It is an amenable number.

18470560668 is an abundant number, since it is smaller than the sum of its proper divisors (33513152484).

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

18470560668 is a wasteful number, since it uses less digits than its factorization.

18470560668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609159 (or 609138 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 18470560668 in words is "eighteen billion, four hundred seventy million, five hundred sixty thousand, six hundred sixty-eight".