13006779955 has 48 divisors (see below), whose sum is σ = 17276898240. Its totient is φ = 9393905664.

The previous prime is 13006779949. The next prime is 13006779959. The reversal of 13006779955 is 55997760031.

It is a happy number.

13006779955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13006779955 - 2²⁵ = 12973225523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13006779959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7293994 + ... + 7295776.

It is an arithmetic number, because the mean of its divisors is an integer number (359935380).

Almost surely, 2^13006779955 is an apocalyptic number.

13006779955 is a deficient number, since it is larger than the sum of its proper divisors (4270118285).

13006779955 is a wasteful number, since it uses less digits than its factorization.

13006779955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 13006779955 in words is "thirteen billion, six million, seven hundred seventy-nine thousand, nine hundred fifty-five".