225845098690 has 16 divisors (see below), whose sum is σ = 409488487992. Its totient is φ = 89678637184.

The previous prime is 225845098673. The next prime is 225845098709. The reversal of 225845098690 is 96890548522.

It can be written as a sum of positive squares in 4 ways, for example, as 118104257569 + 107740841121 = 343663^2 + 328239^2 .

It is a super-2 number, since 2×225845098690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82423849 + ... + 82426588.

Almost surely, 2^225845098690 is an apocalyptic number.

225845098690 is a deficient number, since it is larger than the sum of its proper divisors (183643389302).

225845098690 is a wasteful number, since it uses less digits than its factorization.

225845098690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164850581.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 225845098690 in words is "two hundred twenty-five billion, eight hundred forty-five million, ninety-eight thousand, six hundred ninety".