2257456661 has 8 divisors (see below), whose sum is σ = 2301258720. Its totient is φ = 2213952048.

The previous prime is 2257456627. The next prime is 2257456667. The reversal of 2257456661 is 1666547522.

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

It is a cyclic number.

It is not a de Polignac number, because 2257456661 - 2²² = 2253262357 is a prime.

It is a super-2 number, since 2×2257456661² = 10192221152586537842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257456667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59006 + ... + 89423.

It is an arithmetic number, because the mean of its divisors is an integer number (287657340).

Almost surely, 2^2257456661 is an apocalyptic number.

It is an amenable number.

2257456661 is a deficient number, since it is larger than the sum of its proper divisors (43802059).

2257456661 is a wasteful number, since it uses less digits than its factorization.

2257456661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148723.

The product of its digits is 604800, while the sum is 44.

The square root of 2257456661 is about 47512.6999969482. The cubic root of 2257456661 is about 1311.8166550277.

The spelling of 2257456661 in words is "two billion, two hundred fifty-seven million, four hundred fifty-six thousand, six hundred sixty-one".