155995538629 has 24 divisors (see below), whose sum is σ = 191481641280. Its totient is φ = 126459837504.

The previous prime is 155995538627. The next prime is 155995538663. The reversal of 155995538629 is 926835599551.

It is not a de Polignac number, because 155995538629 - 2¹ = 155995538627 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 (155995538623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677319 + ... + 877924.

It is an arithmetic number, because the mean of its divisors is an integer number (7978401720).

Almost surely, 2^155995538629 is an apocalyptic number.

It is an amenable number.

155995538629 is a deficient number, since it is larger than the sum of its proper divisors (35486102651).

155995538629 is a wasteful number, since it uses less digits than its factorization.

155995538629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555369 (or 1555362 counting only the distinct ones).

The product of its digits is 131220000, while the sum is 67.

The spelling of 155995538629 in words is "one hundred fifty-five billion, nine hundred ninety-five million, five hundred thirty-eight thousand, six hundred twenty-nine".