16311941568 has 112 divisors (see below), whose sum is σ = 51642934560. Its totient is φ = 5019052032.

The previous prime is 16311941563. The next prime is 16311941587. The reversal of 16311941568 is 86514911361.

16311941568 is a `hidden beast` number, since 1 + 6 + 31 + 19 + 41 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16311941563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340605 + ... + 385532.

It is an arithmetic number, because the mean of its divisors is an integer number (461097630).

Almost surely, 2^16311941568 is an apocalyptic number.

16311941568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16311941568 is an abundant number, since it is smaller than the sum of its proper divisors (35330992992).

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

16311941568 is a wasteful number, since it uses less digits than its factorization.

16311941568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726171 (or 726155 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 16311941568 in words is "sixteen billion, three hundred eleven million, nine hundred forty-one thousand, five hundred sixty-eight".