159657750157 has 4 divisors (see below), whose sum is σ = 159893582076. Its totient is φ = 159421918240.

The previous prime is 159657750151. The next prime is 159657750167. The reversal of 159657750157 is 751057756951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94114581961 + 65543168196 = 306781^2 + 256014^2 .

It is a cyclic number.

It is not a de Polignac number, because 159657750157 - 2³ = 159657750149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159657750151) 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, 117914944 + ... + 117916297.

It is an arithmetic number, because the mean of its divisors is an integer number (39973395519).

Almost surely, 2^159657750157 is an apocalyptic number.

It is an amenable number.

159657750157 is a deficient number, since it is larger than the sum of its proper divisors (235831919).

159657750157 is an equidigital number, since it uses as much as digits as its factorization.

159657750157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235831918.

The product of its (nonzero) digits is 11576250, while the sum is 58.

The spelling of 159657750157 in words is "one hundred fifty-nine billion, six hundred fifty-seven million, seven hundred fifty thousand, one hundred fifty-seven".