159671399157 has 24 divisors (see below), whose sum is σ = 232025039064. Its totient is φ = 105807642624.

The previous prime is 159671399123. The next prime is 159671399197. The reversal of 159671399157 is 751993176951.

159671399157 is a `hidden beast` number, since 1 + 5 + 96 + 7 + 1 + 399 + 157 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10510145361 + 149161253796 = 102519^2 + 386214^2 .

It is not a de Polignac number, because 159671399157 - 2¹² = 159671395061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159671399094 and 159671399103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159671399197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2076163 + ... + 2151695.

It is an arithmetic number, because the mean of its divisors is an integer number (9667709961).

Almost surely, 2^159671399157 is an apocalyptic number.

It is an amenable number.

159671399157 is a deficient number, since it is larger than the sum of its proper divisors (72353639907).

159671399157 is a wasteful number, since it uses less digits than its factorization.

159671399157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76949 (or 76946 counting only the distinct ones).

The product of its digits is 16074450, while the sum is 63.

The spelling of 159671399157 in words is "one hundred fifty-nine billion, six hundred seventy-one million, three hundred ninety-nine thousand, one hundred fifty-seven".