531161363064 has 16 divisors (see below), whose sum is σ = 1327903407720. Its totient is φ = 177053787680.

The previous prime is 531161363021. The next prime is 531161363111. The reversal of 531161363064 is 460363161135.

It is a super-2 number, since 2×531161363064² (a number of 24 digits) contains 22 as substring.

It is a congruent 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, 11065861707 + ... + 11065861754.

Almost surely, 2^531161363064 is an apocalyptic number.

It is an amenable number.

531161363064 is an abundant number, since it is smaller than the sum of its proper divisors (796742044656).

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

531161363064 is a wasteful number, since it uses less digits than its factorization.

531161363064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131723470 (or 22131723466 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 531161363064 in words is "five hundred thirty-one billion, one hundred sixty-one million, three hundred sixty-three thousand, sixty-four".