815366416 has 80 divisors (see below), whose sum is σ = 1661036544. Its totient is φ = 387459072.

The previous prime is 815366411. The next prime is 815366423. The reversal of 815366416 is 614663518.

It is not an unprimeable number, because it can be changed into a prime (815366411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6420145 + ... + 6420271.

Almost surely, 2^815366416 is an apocalyptic number.

It is an amenable number.

815366416 is an abundant number, since it is smaller than the sum of its proper divisors (845670128).

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

815366416 is a wasteful number, since it uses less digits than its factorization.

815366416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 362 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 815366416 is about 28554.6216224274. The cubic root of 815366416 is about 934.2238274329.

The spelling of 815366416 in words is "eight hundred fifteen million, three hundred sixty-six thousand, four hundred sixteen".