1500664564 has 12 divisors (see below), whose sum is σ = 3001329184. Its totient is φ = 643141944.

The previous prime is 1500664547. The next prime is 1500664567. The reversal of 1500664564 is 4654660051.

1500664564 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500664567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26797554 + ... + 26797609.

Almost surely, 2^1500664564 is an apocalyptic number.

1500664564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1500664564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1500664564 is a wasteful number, since it uses less digits than its factorization.

1500664564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53595174 (or 53595172 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1500664564 is about 38738.4119963635. The cubic root of 1500664564 is about 1144.8832700105.

The spelling of 1500664564 in words is "one billion, five hundred million, six hundred sixty-four thousand, five hundred sixty-four".