2656533655 has 4 divisors (see below), whose sum is σ = 3187840392. Its totient is φ = 2125226920.

The previous prime is 2656533653. The next prime is 2656533689. The reversal of 2656533655 is 5563356562.

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 2656533655 - 2¹ = 2656533653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656533653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265653361 + ... + 265653370.

It is an arithmetic number, because the mean of its divisors is an integer number (796960098).

Almost surely, 2^2656533655 is an apocalyptic number.

2656533655 is a deficient number, since it is larger than the sum of its proper divisors (531306737).

2656533655 is an equidigital number, since it uses as much as digits as its factorization.

2656533655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531306736.

The product of its digits is 2430000, while the sum is 46.

The square root of 2656533655 is about 51541.5721044673. The cubic root of 2656533655 is about 1384.9638597441.

The spelling of 2656533655 in words is "two billion, six hundred fifty-six million, five hundred thirty-three thousand, six hundred fifty-five".