157904816 has 20 divisors (see below), whose sum is σ = 306323400. Its totient is φ = 78853632.

The previous prime is 157904809. The next prime is 157904833. The reversal of 157904816 is 618409751.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8000 + ... + 19488.

It is an arithmetic number, because the mean of its divisors is an integer number (15316170).

Almost surely, 2^157904816 is an apocalyptic number.

157904816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157904816 is a deficient number, since it is larger than the sum of its proper divisors (148418584).

157904816 is a wasteful number, since it uses less digits than its factorization.

157904816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12356 (or 12350 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 157904816 is about 12566.0183033449. The cubic root of 157904816 is about 540.5034354000.

The spelling of 157904816 in words is "one hundred fifty-seven million, nine hundred four thousand, eight hundred sixteen".