2656646274 has 8 divisors (see below), whose sum is σ = 5313292560. Its totient is φ = 885548756.

The previous prime is 2656646273. The next prime is 2656646347. The reversal of 2656646274 is 4726466562.

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

2656646274 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2656646273) 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, 221387184 + ... + 221387195.

It is an arithmetic number, because the mean of its divisors is an integer number (664161570).

Almost surely, 2^2656646274 is an apocalyptic number.

2656646274 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.

2656646274 is a wasteful number, since it uses less digits than its factorization.

2656646274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442774384.

The product of its digits is 2903040, while the sum is 48.

The square root of 2656646274 is about 51542.6645993394. The cubic root of 2656646274 is about 1384.9834304907.

The spelling of 2656646274 in words is "two billion, six hundred fifty-six million, six hundred forty-six thousand, two hundred seventy-four".