155875617959 has 2 divisors, whose sum is σ = 155875617960. Its totient is φ = 155875617958.

The previous prime is 155875617907. The next prime is 155875617979. The reversal of 155875617959 is 959716578551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155875617959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155875617979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77937808979 + 77937808980.

It is an arithmetic number, because the mean of its divisors is an integer number (77937808980).

Almost surely, 2^155875617959 is an apocalyptic number.

155875617959 is a deficient number, since it is larger than the sum of its proper divisors (1).

155875617959 is an equidigital number, since it uses as much as digits as its factorization.

155875617959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070000, while the sum is 68.

The spelling of 155875617959 in words is "one hundred fifty-five billion, eight hundred seventy-five million, six hundred seventeen thousand, nine hundred fifty-nine".