505266752664 has 48 divisors (see below), whose sum is σ = 1419113415720. Its totient is φ = 168422250240.

The previous prime is 505266752597. The next prime is 505266752681. The reversal of 505266752664 is 466257662505.

505266752664 is a `hidden beast` number, since 5 + 0 + 52 + 6 + 6 + 7 + 526 + 64 = 666.

505266752664 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 505266752664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129953497 + ... + 129957384.

Almost surely, 2^505266752664 is an apocalyptic number.

505266752664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

505266752664 is an abundant number, since it is smaller than the sum of its proper divisors (913846663056).

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

505266752664 is a wasteful number, since it uses less digits than its factorization.

505266752664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259910902 (or 259910886 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 505266752664 in words is "five hundred five billion, two hundred sixty-six million, seven hundred fifty-two thousand, six hundred sixty-four".