52687163666 has 64 divisors (see below), whose sum is σ = 85954176000. Its totient is φ = 24144713280.

The previous prime is 52687163621. The next prime is 52687163699. The reversal of 52687163666 is 66636178625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40810481 + ... + 40811771.

It is an arithmetic number, because the mean of its divisors is an integer number (1343034000).

Almost surely, 2^52687163666 is an apocalyptic number.

52687163666 is a deficient number, since it is larger than the sum of its proper divisors (33267012334).

52687163666 is a wasteful number, since it uses less digits than its factorization.

52687163666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647.

The product of its digits is 13063680, while the sum is 56.

The spelling of 52687163666 in words is "fifty-two billion, six hundred eighty-seven million, one hundred sixty-three thousand, six hundred sixty-six".