499066531920 has 120 divisors (see below), whose sum is σ = 1828398323232. Its totient is φ = 120985824000.

The previous prime is 499066531919. The next prime is 499066532023. The reversal of 499066531920 is 29135660994.

499066531920 is a `hidden beast` number, since 49 + 9 + 0 + 66 + 531 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31498806 + ... + 31514645.

Almost surely, 2^499066531920 is an apocalyptic number.

499066531920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499066531920 is an abundant number, since it is smaller than the sum of its proper divisors (1329331791312).

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

499066531920 is a wasteful number, since it uses less digits than its factorization.

499066531920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63013481 (or 63013472 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 499066531920 in words is "four hundred ninety-nine billion, sixty-six million, five hundred thirty-one thousand, nine hundred twenty".