155637027871 has 6 divisors (see below), whose sum is σ = 168530036280. Its totient is φ = 143664948648.

The previous prime is 155637027857. The next prime is 155637027901. The reversal of 155637027871 is 178720736551.

It is a de Polignac number, because none of the positive numbers 2^k-155637027871 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 (155637027841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 460464411 + ... + 460464748.

It is an arithmetic number, because the mean of its divisors is an integer number (28088339380).

Almost surely, 2^155637027871 is an apocalyptic number.

155637027871 is a deficient number, since it is larger than the sum of its proper divisors (12893008409).

155637027871 is an equidigital number, since it uses as much as digits as its factorization.

155637027871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920929185 (or 920929172 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 155637027871 in words is "one hundred fifty-five billion, six hundred thirty-seven million, twenty-seven thousand, eight hundred seventy-one".