155167213129 has 2 divisors, whose sum is σ = 155167213130. Its totient is φ = 155167213128.

The previous prime is 155167213079. The next prime is 155167213139. The reversal of 155167213129 is 921312761551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135978037504 + 19189175625 = 368752^2 + 138525^2 .

It is a cyclic number.

It is not a de Polignac number, because 155167213129 - 2¹⁵ = 155167180361 is a prime.

It is not a weakly prime, because it can be changed into another prime (155167213139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77583606564 + 77583606565.

It is an arithmetic number, because the mean of its divisors is an integer number (77583606565).

Almost surely, 2^155167213129 is an apocalyptic number.

It is an amenable number.

155167213129 is a deficient number, since it is larger than the sum of its proper divisors (1).

155167213129 is an equidigital number, since it uses as much as digits as its factorization.

155167213129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 43.

The spelling of 155167213129 in words is "one hundred fifty-five billion, one hundred sixty-seven million, two hundred thirteen thousand, one hundred twenty-nine".