2257949666 has 32 divisors (see below), whose sum is σ = 4016701440. Its totient is φ = 931539600.

The previous prime is 2257949621. The next prime is 2257949671. The reversal of 2257949666 is 6669497522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69275 + ... + 96513.

It is an arithmetic number, because the mean of its divisors is an integer number (125521920).

Almost surely, 2^2257949666 is an apocalyptic number.

2257949666 is a deficient number, since it is larger than the sum of its proper divisors (1758751774).

2257949666 is a wasteful number, since it uses less digits than its factorization.

2257949666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27470.

The product of its digits is 9797760, while the sum is 56.

The square root of 2257949666 is about 47517.8878528918. The cubic root of 2257949666 is about 1311.9121437706.

The spelling of 2257949666 in words is "two billion, two hundred fifty-seven million, nine hundred forty-nine thousand, six hundred sixty-six".