505525161664 has 28 divisors (see below), whose sum is σ = 1055948942200. Its totient is φ = 239459286528.

The previous prime is 505525161613. The next prime is 505525161677. The reversal of 505525161664 is 466161525505.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207862749 + ... + 207865180.

Almost surely, 2^505525161664 is an apocalyptic number.

It is an amenable number.

505525161664 is an abundant number, since it is smaller than the sum of its proper divisors (550423780536).

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

505525161664 is a wasteful number, since it uses less digits than its factorization.

505525161664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415727960 (or 415727950 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 505525161664 in words is "five hundred five billion, five hundred twenty-five million, one hundred sixty-one thousand, six hundred sixty-four".