155134255575 has 72 divisors (see below), whose sum is σ = 286696174080. Its totient is φ = 73909929600.

The previous prime is 155134255567. The next prime is 155134255579. The reversal of 155134255575 is 575552431551.

It is a happy number.

It is not a de Polignac number, because 155134255575 - 2³ = 155134255567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155134255579) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 195516 + ... + 590334.

Almost surely, 2^155134255575 is an apocalyptic number.

155134255575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155134255575 is a deficient number, since it is larger than the sum of its proper divisors (131561918505).

155134255575 is a wasteful number, since it uses less digits than its factorization.

155134255575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394889 (or 394871 counting only the distinct ones).

The product of its digits is 2625000, while the sum is 48.

The spelling of 155134255575 in words is "one hundred fifty-five billion, one hundred thirty-four million, two hundred fifty-five thousand, five hundred seventy-five".