2157333568 has 56 divisors (see below), whose sum is σ = 4852944320. Its totient is φ = 943280640.

The previous prime is 2157333557. The next prime is 2157333583. The reversal of 2157333568 is 8653337512.

It is a super-2 number, since 2×2157333568² = 9308176247239221248, which contains 22 as substring.

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, 52428 + ... + 84043.

It is an arithmetic number, because the mean of its divisors is an integer number (86659720).

Almost surely, 2^2157333568 is an apocalyptic number.

It is an amenable number.

2157333568 is an abundant number, since it is smaller than the sum of its proper divisors (2695610752).

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

2157333568 is a wasteful number, since it uses less digits than its factorization.

2157333568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136515 (or 136505 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The square root of 2157333568 is about 46447.1050551054. The cubic root of 2157333568 is about 1292.1286826239.

The spelling of 2157333568 in words is "two billion, one hundred fifty-seven million, three hundred thirty-three thousand, five hundred sixty-eight".