101816578056 has 32 divisors (see below), whose sum is σ = 255235040640. Its totient is φ = 33846379968.

The previous prime is 101816578021. The next prime is 101816578063. The reversal of 101816578056 is 650875618101.

It is a happy number.

101816578056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 101816577996 and 101816578014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5770971 + ... + 5788586.

It is an arithmetic number, because the mean of its divisors is an integer number (7976095020).

Almost surely, 2^101816578056 is an apocalyptic number.

It is an amenable number.

101816578056 is an abundant number, since it is smaller than the sum of its proper divisors (153418462584).

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

101816578056 is a wasteful number, since it uses less digits than its factorization.

101816578056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11559933 (or 11559929 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 101816578056 in words is "one hundred one billion, eight hundred sixteen million, five hundred seventy-eight thousand, fifty-six".