225664376899 has 24 divisors (see below), whose sum is σ = 252541709952. Its totient is φ = 201345730560.

The previous prime is 225664376893. The next prime is 225664376909. The reversal of 225664376899 is 998673466522.

It is not a de Polignac number, because 225664376899 - 2⁵ = 225664376867 is a prime.

It is a super-2 number, since 2×225664376899² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225664376893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4443619 + ... + 4494115.

It is an arithmetic number, because the mean of its divisors is an integer number (10522571248).

Almost surely, 2^225664376899 is an apocalyptic number.

225664376899 is a deficient number, since it is larger than the sum of its proper divisors (26877333053).

225664376899 is a wasteful number, since it uses less digits than its factorization.

225664376899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51407 (or 51394 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 67.

The spelling of 225664376899 in words is "two hundred twenty-five billion, six hundred sixty-four million, three hundred seventy-six thousand, eight hundred ninety-nine".