815830078616 has 32 divisors (see below), whose sum is σ = 1748764974240. Its totient is φ = 349529929728.

The previous prime is 815830078607. The next prime is 815830078627. The reversal of 815830078616 is 616870038518.

815830078616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 congruent number.

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, 2146355 + ... + 2497698.

It is an arithmetic number, because the mean of its divisors is an integer number (54648905445).

Almost surely, 2^815830078616 is an apocalyptic number.

It is an amenable number.

815830078616 is an abundant number, since it is smaller than the sum of its proper divisors (932934895624).

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

815830078616 is a wasteful number, since it uses less digits than its factorization.

815830078616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647203 (or 4647199 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 815830078616 in words is "eight hundred fifteen billion, eight hundred thirty million, seventy-eight thousand, six hundred sixteen".