2656640202 has 8 divisors (see below), whose sum is σ = 5313280416. Its totient is φ = 885546732.

The previous prime is 2656640183. The next prime is 2656640209. The reversal of 2656640202 is 2020466562.

2656640202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2656640202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2656640209) 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, 221386678 + ... + 221386689.

It is an arithmetic number, because the mean of its divisors is an integer number (664160052).

Almost surely, 2^2656640202 is an apocalyptic number.

2656640202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2656640202 is a wasteful number, since it uses less digits than its factorization.

2656640202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442773372.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2656640202 is about 51542.6056966467. The cubic root of 2656640202 is about 1384.9823753226.

The spelling of 2656640202 in words is "two billion, six hundred fifty-six million, six hundred forty thousand, two hundred two".