159880977 has 6 divisors (see below), whose sum is σ = 230939202. Its totient is φ = 106587312.

The previous prime is 159880967. The next prime is 159880979. The reversal of 159880977 is 779088951.

It can be written as a sum of positive squares in only one way, i.e., 86881041 + 72999936 = 9321^2 + 8544^2 .

It is not a de Polignac number, because 159880977 - 2⁷ = 159880849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159880979) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8882268 + ... + 8882285.

It is an arithmetic number, because the mean of its divisors is an integer number (38489867).

Almost surely, 2^159880977 is an apocalyptic number.

It is an amenable number.

159880977 is a deficient number, since it is larger than the sum of its proper divisors (71058225).

159880977 is a wasteful number, since it uses less digits than its factorization.

159880977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17764559 (or 17764556 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The square root of 159880977 is about 12644.4049682063. The cubic root of 159880977 is about 542.7488740385.

The spelling of 159880977 in words is "one hundred fifty-nine million, eight hundred eighty thousand, nine hundred seventy-seven".