2656642303 has 8 divisors (see below), whose sum is σ = 3043082240. Its totient is φ = 2271932280.

The previous prime is 2656642279. The next prime is 2656642319. The reversal of 2656642303 is 3032466562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2656642303 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 (2656642333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429183 + ... + 435328.

It is an arithmetic number, because the mean of its divisors is an integer number (380385280).

Almost surely, 2^2656642303 is an apocalyptic number.

2656642303 is a deficient number, since it is larger than the sum of its proper divisors (386439937).

2656642303 is an equidigital number, since it uses as much as digits as its factorization.

2656642303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864957.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 2656642303 is about 51542.6260778397. The cubic root of 2656642303 is about 1384.9827404262.

The spelling of 2656642303 in words is "two billion, six hundred fifty-six million, six hundred forty-two thousand, three hundred three".