531500327164 has 24 divisors (see below), whose sum is σ = 960283029888. Its totient is φ = 257136486720.

The previous prime is 531500327147. The next prime is 531500327173. The reversal of 531500327164 is 461723005135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444042 + ... + 1122574.

It is an arithmetic number, because the mean of its divisors is an integer number (40011792912).

Almost surely, 2^531500327164 is an apocalyptic number.

It is an amenable number.

531500327164 is a deficient number, since it is larger than the sum of its proper divisors (428782702724).

531500327164 is a wasteful number, since it uses less digits than its factorization.

531500327164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684885 (or 684883 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 531500327164 in words is "five hundred thirty-one billion, five hundred million, three hundred twenty-seven thousand, one hundred sixty-four".