1657151168 has 28 divisors (see below), whose sum is σ = 3295601232. Its totient is φ = 826763520.

The previous prime is 1657151149. The next prime is 1657151183. The reversal of 1657151168 is 8611517561.

It is a happy number.

It is a super-2 number, since 2×1657151168² = 5492299987207528448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421 + ... + 57587.

It is an arithmetic number, because the mean of its divisors is an integer number (117700044).

Almost surely, 2^1657151168 is an apocalyptic number.

It is an amenable number.

1657151168 is a deficient number, since it is larger than the sum of its proper divisors (1638450064).

1657151168 is an equidigital number, since it uses as much as digits as its factorization.

1657151168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56640 (or 56630 counting only the distinct ones).

The product of its digits is 50400, while the sum is 41.

The square root of 1657151168 is about 40708.1216466690. The cubic root of 1657151168 is about 1183.3704194862.

The spelling of 1657151168 in words is "one billion, six hundred fifty-seven million, one hundred fifty-one thousand, one hundred sixty-eight".