313977672666 has 48 divisors (see below), whose sum is σ = 781962614784. Its totient is φ = 89189357472.

The previous prime is 313977672647. The next prime is 313977672677. The reversal of 313977672666 is 666276779313.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7180186 + ... + 7223781.

It is an arithmetic number, because the mean of its divisors is an integer number (16290887808).

Almost surely, 2^313977672666 is an apocalyptic number.

313977672666 is an abundant number, since it is smaller than the sum of its proper divisors (467984942118).

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

313977672666 is a wasteful number, since it uses less digits than its factorization.

313977672666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404155 (or 14404152 counting only the distinct ones).

The product of its digits is 72013536, while the sum is 63.

The spelling of 313977672666 in words is "three hundred thirteen billion, nine hundred seventy-seven million, six hundred seventy-two thousand, six hundred sixty-six".