2655636261 has 16 divisors (see below), whose sum is σ = 3658881984. Its totient is φ = 1711995264.

The previous prime is 2655636241. The next prime is 2655636301. The reversal of 2655636261 is 1626365562.

2655636261 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 2655636261 - 2⁵ = 2655636229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655636241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55296 + ... + 91481.

It is an arithmetic number, because the mean of its divisors is an integer number (228680124).

Almost surely, 2^2655636261 is an apocalyptic number.

It is an amenable number.

2655636261 is a deficient number, since it is larger than the sum of its proper divisors (1003245723).

2655636261 is a wasteful number, since it uses less digits than its factorization.

2655636261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146980.

The product of its digits is 388800, while the sum is 42.

The square root of 2655636261 is about 51532.8658333689. The cubic root of 2655636261 is about 1384.8078923076.

The spelling of 2655636261 in words is "two billion, six hundred fifty-five million, six hundred thirty-six thousand, two hundred sixty-one".