2256165267457 has 8 divisors (see below), whose sum is σ = 2317221547200. Its totient is φ = 2195113137264.

The previous prime is 2256165267451. The next prime is 2256165267469. The reversal of 2256165267457 is 7547625616522.

It is a happy number.

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 2256165267457 - 2⁷ = 2256165267329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256165267451) 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, 80844 + ... + 2125762.

It is an arithmetic number, because the mean of its divisors is an integer number (289652693400).

Almost surely, 2^{2256165267457} is an apocalyptic number.

It is an amenable number.

2256165267457 is a deficient number, since it is larger than the sum of its proper divisors (61056279743).

2256165267457 is a wasteful number, since it uses less digits than its factorization.

2256165267457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074775.

The product of its digits is 42336000, while the sum is 58.

The spelling of 2256165267457 in words is "two trillion, two hundred fifty-six billion, one hundred sixty-five million, two hundred sixty-seven thousand, four hundred fifty-seven".