155165560060087 has 2 divisors, whose sum is σ = 155165560060088. Its totient is φ = 155165560060086.

The previous prime is 155165560060073. The next prime is 155165560060099. The reversal of 155165560060087 is 780060065561551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155165560060087 - 2²³ = 155165551671479 is a prime.

It is a super-2 number, since 2×155165560060087² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155165560064087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77582780030043 + 77582780030044.

It is an arithmetic number, because the mean of its divisors is an integer number (77582780030044).

Almost surely, 2^{155165560060087} is an apocalyptic number.

155165560060087 is a deficient number, since it is larger than the sum of its proper divisors (1).

155165560060087 is an equidigital number, since it uses as much as digits as its factorization.

155165560060087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560000, while the sum is 55.

The spelling of 155165560060087 in words is "one hundred fifty-five trillion, one hundred sixty-five billion, five hundred sixty million, sixty thousand, eighty-seven".