531561332036 has 48 divisors (see below), whose sum is σ = 1067188953600. Its totient is φ = 226942248960.

The previous prime is 531561332023. The next prime is 531561332063. The reversal of 531561332036 is 630233165135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8089040 + ... + 8154488.

It is an arithmetic number, because the mean of its divisors is an integer number (22233103200).

Almost surely, 2^531561332036 is an apocalyptic number.

It is an amenable number.

531561332036 is an abundant number, since it is smaller than the sum of its proper divisors (535627621564).

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

531561332036 is a wasteful number, since it uses less digits than its factorization.

531561332036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66564 (or 66562 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 38.

The spelling of 531561332036 in words is "five hundred thirty-one billion, five hundred sixty-one million, three hundred thirty-two thousand, thirty-six".