155132255499 has 32 divisors (see below), whose sum is σ = 223226063424. Its totient is φ = 95263948800.

The previous prime is 155132255461. The next prime is 155132255519. The reversal of 155132255499 is 994552231551.

It is not a de Polignac number, because 155132255499 - 2¹⁵ = 155132222731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155132255449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54757587 + ... + 54760419.

It is an arithmetic number, because the mean of its divisors is an integer number (6975814482).

Almost surely, 2^155132255499 is an apocalyptic number.

155132255499 is a deficient number, since it is larger than the sum of its proper divisors (68093807925).

155132255499 is a wasteful number, since it uses less digits than its factorization.

155132255499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327.

The product of its digits is 2430000, while the sum is 51.

The spelling of 155132255499 in words is "one hundred fifty-five billion, one hundred thirty-two million, two hundred fifty-five thousand, four hundred ninety-nine".