155544015255 has 32 divisors (see below), whose sum is σ = 254777607360. Its totient is φ = 81010252800.

The previous prime is 155544015227. The next prime is 155544015271. The reversal of 155544015255 is 552510445551.

It is a happy number.

It is not a de Polignac number, because 155544015255 - 2¹⁰ = 155544014231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592620 + ... + 813809.

It is an arithmetic number, because the mean of its divisors is an integer number (7961800230).

Almost surely, 2^155544015255 is an apocalyptic number.

155544015255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155544015255 is a deficient number, since it is larger than the sum of its proper divisors (99233592105).

155544015255 is a wasteful number, since it uses less digits than its factorization.

155544015255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406611.

The product of its (nonzero) digits is 500000, while the sum is 42.

The spelling of 155544015255 in words is "one hundred fifty-five billion, five hundred forty-four million, fifteen thousand, two hundred fifty-five".