225842235866 has 32 divisors (see below), whose sum is σ = 366383787840. Its totient is φ = 103789229184.

The previous prime is 225842235847. The next prime is 225842235877. The reversal of 225842235866 is 668532248522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10533305 + ... + 10554723.

It is an arithmetic number, because the mean of its divisors is an integer number (11449493370).

Almost surely, 2^225842235866 is an apocalyptic number.

225842235866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

225842235866 is a deficient number, since it is larger than the sum of its proper divisors (140541551974).

225842235866 is a wasteful number, since it uses less digits than its factorization.

225842235866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150.

The product of its digits is 11059200, while the sum is 53.

The spelling of 225842235866 in words is "two hundred twenty-five billion, eight hundred forty-two million, two hundred thirty-five thousand, eight hundred sixty-six".