31916012850216 has 128 divisors (see below), whose sum is σ = 96717077654400. Its totient is φ = 9671330327040.

The previous prime is 31916012850199. The next prime is 31916012850233. The reversal of 31916012850216 is 61205821061913.

It is a happy number.

31916012850216 is a `hidden beast` number, since 3 + 1 + 9 + 1 + 6 + 0 + 128 + 502 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (31916012850199) and next prime (31916012850233).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165931636 + ... + 166123868.

It is an arithmetic number, because the mean of its divisors is an integer number (755602169175).

Almost surely, 2^{31916012850216} is an apocalyptic number.

31916012850216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31916012850216 is an abundant number, since it is smaller than the sum of its proper divisors (64801064804184).

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

31916012850216 is a wasteful number, since it uses less digits than its factorization.

31916012850216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262136 (or 262126 counting only the distinct ones).

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

The spelling of 31916012850216 in words is "thirty-one trillion, nine hundred sixteen billion, twelve million, eight hundred fifty thousand, two hundred sixteen".