2656645450 has 24 divisors (see below), whose sum is σ = 4943076480. Its totient is φ = 1062289200.

The previous prime is 2656645447. The next prime is 2656645463. The reversal of 2656645450 is 545466562.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2656645397 and 2656645406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171111 + ... + 185989.

It is an arithmetic number, because the mean of its divisors is an integer number (205961520).

Almost surely, 2^2656645450 is an apocalyptic number.

2656645450 is a deficient number, since it is larger than the sum of its proper divisors (2286431030).

2656645450 is a wasteful number, since it uses less digits than its factorization.

2656645450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18462 (or 18457 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The square root of 2656645450 is about 51542.6566059609. The cubic root of 2656645450 is about 1384.9832872994.

The spelling of 2656645450 in words is "two billion, six hundred fifty-six million, six hundred forty-five thousand, four hundred fifty".