311135664402 has 160 divisors (see below), whose sum is σ = 754402885632. Its totient is φ = 95477930496.

The previous prime is 311135664361. The next prime is 311135664431. The reversal of 311135664402 is 204466531113.

311135664402 is a `hidden beast` number, since 3 + 1 + 1 + 1 + 3 + 5 + 6 + 644 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 50645743 + ... + 50651885.

Almost surely, 2^311135664402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311135664402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377201442816).

311135664402 is an abundant number, since it is smaller than the sum of its proper divisors (443267221230).

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

311135664402 is a wasteful number, since it uses less digits than its factorization.

311135664402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574 (or 6565 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 311135664402 in words is "three hundred eleven billion, one hundred thirty-five million, six hundred sixty-four thousand, four hundred two".