815530078416 has 40 divisors (see below), whose sum is σ = 2106818939680. Its totient is φ = 271839113856.

The previous prime is 815530078403. The next prime is 815530078439. The reversal of 815530078416 is 614870035518.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101590 + ... + 5259018.

It is an arithmetic number, because the mean of its divisors is an integer number (52670473492).

Almost surely, 2^815530078416 is an apocalyptic number.

It is an amenable number.

815530078416 is an abundant number, since it is smaller than the sum of its proper divisors (1291288861264).

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

815530078416 is a wasteful number, since it uses less digits than its factorization.

815530078416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265363 (or 265357 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 815530078416 in words is "eight hundred fifteen billion, five hundred thirty million, seventy-eight thousand, four hundred sixteen".