159925640084477 has 2 divisors, whose sum is σ = 159925640084478. Its totient is φ = 159925640084476.

The previous prime is 159925640084467. The next prime is 159925640084563. The reversal of 159925640084477 is 774480046529951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150646878321241 + 9278761763236 = 12273829^2 + 3046106^2 .

It is a cyclic number.

It is not a de Polignac number, because 159925640084477 - 2²⁶ = 159925572975613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159925640084477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159925640084407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79962820042238 + 79962820042239.

It is an arithmetic number, because the mean of its divisors is an integer number (79962820042239).

Almost surely, 2^{159925640084477} is an apocalyptic number.

It is an amenable number.

159925640084477 is a deficient number, since it is larger than the sum of its proper divisors (1).

159925640084477 is an equidigital number, since it uses as much as digits as its factorization.

159925640084477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 609638400, while the sum is 71.

The spelling of 159925640084477 in words is "one hundred fifty-nine trillion, nine hundred twenty-five billion, six hundred forty million, eighty-four thousand, four hundred seventy-seven".