1660616156157 has 32 divisors (see below), whose sum is σ = 2592389178624. Its totient is φ = 925704806400.

The previous prime is 1660616156153. The next prime is 1660616156257. The reversal of 1660616156157 is 7516516160661.

It is not a de Polignac number, because 1660616156157 - 2² = 1660616156153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660616156153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11708853 + ... + 11849829.

It is an arithmetic number, because the mean of its divisors is an integer number (81012161832).

Almost surely, 2^{1660616156157} is an apocalyptic number.

It is an amenable number.

1660616156157 is a deficient number, since it is larger than the sum of its proper divisors (931773022467).

1660616156157 is a wasteful number, since it uses less digits than its factorization.

1660616156157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154709.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 1660616156157 in words is "one trillion, six hundred sixty billion, six hundred sixteen million, one hundred fifty-six thousand, one hundred fifty-seven".