225064137620 has 48 divisors (see below), whose sum is σ = 540190280448. Its totient is φ = 77159654400.

The previous prime is 225064137619. The next prime is 225064137677. The reversal of 225064137620 is 26731460522.

It is a congruent 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, 2444420 + ... + 2534820.

It is an arithmetic number, because the mean of its divisors is an integer number (11253964176).

Almost surely, 2^225064137620 is an apocalyptic number.

225064137620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225064137620 is an abundant number, since it is smaller than the sum of its proper divisors (315126142828).

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

225064137620 is a wasteful number, since it uses less digits than its factorization.

225064137620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108200 (or 108198 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 225064137620 in words is "two hundred twenty-five billion, sixty-four million, one hundred thirty-seven thousand, six hundred twenty".