501689065920 has 224 divisors, whose sum is σ = 1916226393600. Its totient is φ = 108636401664.

The previous prime is 501689065903. The next prime is 501689066023. The reversal of 501689065920 is 29560986105.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1836955 + ... + 2092314.

Almost surely, 2^501689065920 is an apocalyptic number.

It is an amenable number.

501689065920 is an abundant number, since it is smaller than the sum of its proper divisors (1414537327680).

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

501689065920 is a wasteful number, since it uses less digits than its factorization.

501689065920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929315 (or 3929305 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 501689065920 in words is "five hundred one billion, six hundred eighty-nine million, sixty-five thousand, nine hundred twenty".