816015099328 has 168 divisors, whose sum is σ = 1964531981520. Its totient is φ = 333128540160.

The previous prime is 816015099313. The next prime is 816015099331. The reversal of 816015099328 is 823990510618.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4309428 + ... + 4494796.

Almost surely, 2^816015099328 is an apocalyptic number.

816015099328 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 816015099328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982265990760).

816015099328 is an abundant number, since it is smaller than the sum of its proper divisors (1148516882192).

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

816015099328 is a wasteful number, since it uses less digits than its factorization.

816015099328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185455 (or 185432 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 816015099328 in words is "eight hundred sixteen billion, fifteen million, ninety-nine thousand, three hundred twenty-eight".