320571491432 has 16 divisors (see below), whose sum is σ = 601086904800. Its totient is φ = 160281650160.

The previous prime is 320571491417. The next prime is 320571491447. The reversal of 320571491432 is 234194175023.

It is an interprime number because it is at equal distance from previous prime (320571491417) and next prime (320571491447).

It is a super-2 number, since 2×320571491432² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320571491432.

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, 165494 + ... + 817637.

It is an arithmetic number, because the mean of its divisors is an integer number (37567931550).

Almost surely, 2^320571491432 is an apocalyptic number.

It is an amenable number.

320571491432 is a deficient number, since it is larger than the sum of its proper divisors (280515413368).

320571491432 is a wasteful number, since it uses less digits than its factorization.

320571491432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023896 (or 1023892 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 320571491432 in words is "three hundred twenty billion, five hundred seventy-one million, four hundred ninety-one thousand, four hundred thirty-two".