2057660121 has 8 divisors (see below), whose sum is σ = 2992960224. Its totient is φ = 1247066720.

The previous prime is 2057660107. The next prime is 2057660147. The reversal of 2057660121 is 1210667502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2057660121 - 2⁷ = 2057659993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2057660621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31176636 + ... + 31176701.

It is an arithmetic number, because the mean of its divisors is an integer number (374120028).

Almost surely, 2^2057660121 is an apocalyptic number.

It is an amenable number.

2057660121 is a deficient number, since it is larger than the sum of its proper divisors (935300103).

2057660121 is a wasteful number, since it uses less digits than its factorization.

2057660121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62353351.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2057660121 is about 45361.4387007291. The cubic root of 2057660121 is about 1271.9143883235.

The spelling of 2057660121 in words is "two billion, fifty-seven million, six hundred sixty thousand, one hundred twenty-one".