1163157657 has 4 divisors (see below), whose sum is σ = 1550876880. Its totient is φ = 775438436.

The previous prime is 1163157617. The next prime is 1163157701. The reversal of 1163157657 is 7567513611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1163157657 - 2¹⁵ = 1163124889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1163157617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193859607 + ... + 193859612.

It is an arithmetic number, because the mean of its divisors is an integer number (387719220).

Almost surely, 2^1163157657 is an apocalyptic number.

It is an amenable number.

1163157657 is a deficient number, since it is larger than the sum of its proper divisors (387719223).

1163157657 is an equidigital number, since it uses as much as digits as its factorization.

1163157657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387719222.

The product of its digits is 132300, while the sum is 42.

The square root of 1163157657 is about 34105.0972290067. The cubic root of 1163157657 is about 1051.6701031659.

The spelling of 1163157657 in words is "one billion, one hundred sixty-three million, one hundred fifty-seven thousand, six hundred fifty-seven".