18604606064 has 40 divisors (see below), whose sum is σ = 41636518128. Its totient is φ = 7959188480.

The previous prime is 18604606063. The next prime is 18604606133. The reversal of 18604606064 is 46060640681.

It is a super-2 number, since 2×18604606064² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18604606063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106067 + ... + 3112050.

Almost surely, 2^18604606064 is an apocalyptic number.

It is an amenable number.

18604606064 is an abundant number, since it is smaller than the sum of its proper divisors (23031912064).

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

18604606064 is a wasteful number, since it uses less digits than its factorization.

18604606064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218153 (or 6218147 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 18604606064 in words is "eighteen billion, six hundred four million, six hundred six thousand, sixty-four".