13155767655 has 32 divisors (see below), whose sum is σ = 21585755136. Its totient is φ = 6838280064.

The previous prime is 13155767629. The next prime is 13155767663. The reversal of 13155767655 is 55676755131.

It is not a de Polignac number, because 13155767655 - 2⁵ = 13155767623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13155767598 and 13155767607.

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, 276609 + ... + 320661.

It is an arithmetic number, because the mean of its divisors is an integer number (674554848).

Almost surely, 2^13155767655 is an apocalyptic number.

13155767655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13155767655 is a deficient number, since it is larger than the sum of its proper divisors (8429987481).

13155767655 is a wasteful number, since it uses less digits than its factorization.

13155767655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44567.

The product of its digits is 3307500, while the sum is 51.

It can be divided in two parts, 1315576 and 7655, that added together give a palindrome (1323231).

The spelling of 13155767655 in words is "thirteen billion, one hundred fifty-five million, seven hundred sixty-seven thousand, six hundred fifty-five".