2256160371465 has 256 divisors, whose sum is σ = 4958154915840. Its totient is φ = 845821025280.

The previous prime is 2256160371449. The next prime is 2256160371467. The reversal of 2256160371465 is 5641730616522.

It is not a de Polignac number, because 2256160371465 - 2⁴ = 2256160371449 is a prime.

It is a super-3 number, since 3×2256160371465³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2256160371467) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 127753806 + ... + 127771464.

It is an arithmetic number, because the mean of its divisors is an integer number (19367792640).

Almost surely, 2^{2256160371465} is an apocalyptic number.

It is an amenable number.

2256160371465 is an abundant number, since it is smaller than the sum of its proper divisors (2701994544375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2256160371465 is a wasteful number, since it uses less digits than its factorization.

2256160371465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17892.

The product of its (nonzero) digits is 1814400, while the sum is 48.

Adding to 2256160371465 its reverse (5641730616522), we get a palindrome (7897890987987).

The spelling of 2256160371465 in words is "two trillion, two hundred fifty-six billion, one hundred sixty million, three hundred seventy-one thousand, four hundred sixty-five".