6231378855216 has 80 divisors (see below), whose sum is σ = 16700513638400. Its totient is φ = 2000020999680.

The previous prime is 6231378855193. The next prime is 6231378855283. The reversal of 6231378855216 is 6125588731326.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10225885 + ... + 10818108.

It is an arithmetic number, because the mean of its divisors is an integer number (208756420480).

Almost surely, 2^{6231378855216} is an apocalyptic number.

It is an amenable number.

6231378855216 is an abundant number, since it is smaller than the sum of its proper divisors (10469134783184).

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

6231378855216 is a wasteful number, since it uses less digits than its factorization.

6231378855216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21044234 (or 21044228 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 6231378855216 in words is "six trillion, two hundred thirty-one billion, three hundred seventy-eight million, eight hundred fifty-five thousand, two hundred sixteen".