31664160361 has 8 divisors (see below), whose sum is σ = 31825151424. Its totient is φ = 31503477360.

The previous prime is 31664160349. The next prime is 31664160379. The reversal of 31664160361 is 16306146613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31664160361 - 2⁷ = 31664160233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31664160361.

It is not an unprimeable number, because it can be changed into a prime (31664160161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130491 + ... + 283471.

It is an arithmetic number, because the mean of its divisors is an integer number (3978143928).

Almost surely, 2^31664160361 is an apocalyptic number.

It is an amenable number.

31664160361 is a deficient number, since it is larger than the sum of its proper divisors (160991063).

31664160361 is a wasteful number, since it uses less digits than its factorization.

31664160361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154031.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 31664160361 in words is "thirty-one billion, six hundred sixty-four million, one hundred sixty thousand, three hundred sixty-one".