225123607761 has 16 divisors (see below), whose sum is σ = 323301652800. Its totient is φ = 138517358400.

The previous prime is 225123607733. The next prime is 225123607799. The reversal of 225123607761 is 167706321522.

It is not a de Polignac number, because 225123607761 - 2²² = 225119413457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225123607721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149290 + ... + 687411.

It is an arithmetic number, because the mean of its divisors is an integer number (20206353300).

Almost surely, 2^225123607761 is an apocalyptic number.

It is an amenable number.

225123607761 is a deficient number, since it is larger than the sum of its proper divisors (98178045039).

225123607761 is a wasteful number, since it uses less digits than its factorization.

225123607761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843616.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 225123607761 in words is "two hundred twenty-five billion, one hundred twenty-three million, six hundred seven thousand, seven hundred sixty-one".