2057340665 has 16 divisors (see below), whose sum is σ = 2500449600. Its totient is φ = 1624888512.

The previous prime is 2057340641. The next prime is 2057340683. The reversal of 2057340665 is 5660437502.

It is a cyclic number.

It is not a de Polignac number, because 2057340665 - 2⁶ = 2057340601 is a prime.

It is a super-2 number, since 2×2057340665² = 8465301223725284450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147566 + ... + 160904.

It is an arithmetic number, because the mean of its divisors is an integer number (156278100).

Almost surely, 2^2057340665 is an apocalyptic number.

It is an amenable number.

2057340665 is a deficient number, since it is larger than the sum of its proper divisors (443108935).

2057340665 is a wasteful number, since it uses less digits than its factorization.

2057340665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13736.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 2057340665 is about 45357.9173353451. The cubic root of 2057340665 is about 1271.8485624683.

The spelling of 2057340665 in words is "two billion, fifty-seven million, three hundred forty thousand, six hundred sixty-five".