501520477555672 has 16 divisors (see below), whose sum is σ = 940826060123400. Its totient is φ = 250633528189440.

The previous prime is 501520477555663. The next prime is 501520477555697. The reversal of 501520477555672 is 276555774025105.

It is a self number, because there is not a number n which added to its sum of digits gives 501520477555672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15838806729 + ... + 15838838392.

Almost surely, 2^{501520477555672} is an apocalyptic number.

It is an amenable number.

501520477555672 is a deficient number, since it is larger than the sum of its proper divisors (439305582567728).

501520477555672 is a wasteful number, since it uses less digits than its factorization.

501520477555672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31677647106 (or 31677647102 counting only the distinct ones).

The product of its (nonzero) digits is 102900000, while the sum is 61.

The spelling of 501520477555672 in words is "five hundred one trillion, five hundred twenty billion, four hundred seventy-seven million, five hundred fifty-five thousand, six hundred seventy-two".