157161665157 has 16 divisors (see below), whose sum is σ = 239493120000. Its totient is φ = 89803411632.

The previous prime is 157161665147. The next prime is 157161665189. The reversal of 157161665157 is 751566161751.

It is not a de Polignac number, because 157161665157 - 2⁸ = 157161664901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157161665117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534844 + ... + 774842.

It is an arithmetic number, because the mean of its divisors is an integer number (14968320000).

Almost surely, 2^157161665157 is an apocalyptic number.

It is an amenable number.

157161665157 is a deficient number, since it is larger than the sum of its proper divisors (82331454843).

157161665157 is a wasteful number, since it uses less digits than its factorization.

157161665157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271192.

The product of its digits is 1323000, while the sum is 51.

The spelling of 157161665157 in words is "one hundred fifty-seven billion, one hundred sixty-one million, six hundred sixty-five thousand, one hundred fifty-seven".