312671536661 has 32 divisors (see below), whose sum is σ = 367117920000. Its totient is φ = 263148641280.

The previous prime is 312671536649. The next prime is 312671536841. The reversal of 312671536661 is 166635176213.

It is not a de Polignac number, because 312671536661 - 2³⁴ = 295491667477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312671536621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2815415 + ... + 2924363.

It is an arithmetic number, because the mean of its divisors is an integer number (11472435000).

Almost surely, 2^312671536661 is an apocalyptic number.

It is an amenable number.

312671536661 is a deficient number, since it is larger than the sum of its proper divisors (54446383339).

312671536661 is a wasteful number, since it uses less digits than its factorization.

312671536661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109229.

The product of its digits is 816480, while the sum is 47.

The spelling of 312671536661 in words is "three hundred twelve billion, six hundred seventy-one million, five hundred thirty-six thousand, six hundred sixty-one".