15055510655 has 4 divisors (see below), whose sum is σ = 18066612792. Its totient is φ = 12044408520.

The previous prime is 15055510627. The next prime is 15055510669. The reversal of 15055510655 is 55601555051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15055510655 - 2¹⁸ = 15055248511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505551061 + ... + 1505551070.

It is an arithmetic number, because the mean of its divisors is an integer number (4516653198).

Almost surely, 2^15055510655 is an apocalyptic number.

15055510655 is a deficient number, since it is larger than the sum of its proper divisors (3011102137).

15055510655 is an equidigital number, since it uses as much as digits as its factorization.

15055510655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011102136.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 15055510655 in words is "fifteen billion, fifty-five million, five hundred ten thousand, six hundred fifty-five".