12662605064 has 32 divisors (see below), whose sum is σ = 23942919000. Its totient is φ = 6278031360.

The previous prime is 12662605049. The next prime is 12662605079. The reversal of 12662605064 is 46050626621.

It is an interprime number because it is at equal distance from previous prime (12662605049) and next prime (12662605079).

It can be written as a sum of positive squares in 4 ways, for example, as 6709248100 + 5953356964 = 81910^2 + 77158^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492824 + ... + 517880.

Almost surely, 2^12662605064 is an apocalyptic number.

It is an amenable number.

12662605064 is a deficient number, since it is larger than the sum of its proper divisors (11280313936).

12662605064 is a wasteful number, since it uses less digits than its factorization.

12662605064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25593 (or 25589 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 12662605064 in words is "twelve billion, six hundred sixty-two million, six hundred five thousand, sixty-four".