316661531880 has 32 divisors (see below), whose sum is σ = 949984596000. Its totient is φ = 84443075136.

The previous prime is 316661531873. The next prime is 316661531887. The reversal of 316661531880 is 88135166613.

It is an interprime number because it is at equal distance from previous prime (316661531873) and next prime (316661531887).

It is not an unprimeable number, because it can be changed into a prime (316661531887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319422930 + ... + 1319423169.

It is an arithmetic number, because the mean of its divisors is an integer number (29687018625).

Almost surely, 2^316661531880 is an apocalyptic number.

316661531880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

316661531880 is an abundant number, since it is smaller than the sum of its proper divisors (633323064120).

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

316661531880 is a wasteful number, since it uses less digits than its factorization.

316661531880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638846113 (or 2638846109 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 316661531880 in words is "three hundred sixteen billion, six hundred sixty-one million, five hundred thirty-one thousand, eight hundred eighty".