66652636005504 has 64 divisors (see below), whose sum is σ = 196717849332000. Its totient is φ = 22217545334016.

The previous prime is 66652636005451. The next prime is 66652636005511. The reversal of 66652636005504 is 40550063625666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9643028374 + ... + 9643035285.

Almost surely, 2^{66652636005504} is an apocalyptic number.

66652636005504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66652636005504 is an abundant number, since it is smaller than the sum of its proper divisors (130065213326496).

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

66652636005504 is a wasteful number, since it uses less digits than its factorization.

66652636005504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286063682 (or 19286063664 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 54.

The spelling of 66652636005504 in words is "sixty-six trillion, six hundred fifty-two billion, six hundred thirty-six million, five thousand, five hundred four".