155656631333055 has 32 divisors (see below), whose sum is σ = 258661706434560. Its totient is φ = 79846029728640.

The previous prime is 155656631333033. The next prime is 155656631333141. The reversal of 155656631333055 is 550333136656551.

It is not a de Polignac number, because 155656631333055 - 2⁶ = 155656631332991 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 155656631332986 and 155656631333004.

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, 1026750720 + ... + 1026902309.

It is an arithmetic number, because the mean of its divisors is an integer number (8083178326080).

Almost surely, 2^{155656631333055} is an apocalyptic number.

155656631333055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155656631333055 is a deficient number, since it is larger than the sum of its proper divisors (103005075101505).

155656631333055 is a wasteful number, since it uses less digits than its factorization.

155656631333055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053653231.

The product of its (nonzero) digits is 54675000, while the sum is 57.

The spelling of 155656631333055 in words is "one hundred fifty-five trillion, six hundred fifty-six billion, six hundred thirty-one million, three hundred thirty-three thousand, fifty-five".