916826721056 has 12 divisors (see below), whose sum is σ = 1805002607142. Its totient is φ = 458413360512.

The previous prime is 916826721043. The next prime is 916826721071. The reversal of 916826721056 is 650127628619.

It can be written as a sum of positive squares in only one way, i.e., 719246471056 + 197580250000 = 848084^2 + 444500^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 916826720989 and 916826721007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14325417485 + ... + 14325417548.

Almost surely, 2^916826721056 is an apocalyptic number.

It is an amenable number.

916826721056 is a deficient number, since it is larger than the sum of its proper divisors (888175886086).

916826721056 is a wasteful number, since it uses less digits than its factorization.

916826721056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28650835043 (or 28650835035 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 916826721056 in words is "nine hundred sixteen billion, eight hundred twenty-six million, seven hundred twenty-one thousand, fifty-six".