155127397567 has 4 divisors (see below), whose sum is σ = 155463899976. Its totient is φ = 154790895160.

The previous prime is 155127397559. The next prime is 155127397573. The reversal of 155127397567 is 765793721551.

155127397567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155127397567 - 2³ = 155127397559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155127397547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168250513 + ... + 168251434.

It is an arithmetic number, because the mean of its divisors is an integer number (38865974994).

Almost surely, 2^155127397567 is an apocalyptic number.

155127397567 is a deficient number, since it is larger than the sum of its proper divisors (336502409).

155127397567 is an equidigital number, since it uses as much as digits as its factorization.

155127397567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336502408.

The product of its digits is 13891500, while the sum is 58.

The spelling of 155127397567 in words is "one hundred fifty-five billion, one hundred twenty-seven million, three hundred ninety-seven thousand, five hundred sixty-seven".