316661378432 has 32 divisors (see below), whose sum is σ = 720970104720. Its totient is φ = 135712018944.

The previous prime is 316661378431. The next prime is 316661378459. The reversal of 316661378432 is 234873166613.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316661378431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176707463 + ... + 176709254.

Almost surely, 2^316661378432 is an apocalyptic number.

316661378432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

316661378432 is an abundant number, since it is smaller than the sum of its proper divisors (404308726288).

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

316661378432 is an equidigital number, since it uses as much as digits as its factorization.

316661378432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353416738 (or 353416726 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 50.

The spelling of 316661378432 in words is "three hundred sixteen billion, six hundred sixty-one million, three hundred seventy-eight thousand, four hundred thirty-two".