225235021651606 has 4 divisors (see below), whose sum is σ = 337852532477412. Its totient is φ = 112617510825802.

The previous prime is 225235021651597. The next prime is 225235021651637. The reversal of 225235021651606 is 606156120532522.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×225235021651606² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56308755412900 + ... + 56308755412903.

It is an arithmetic number, because the mean of its divisors is an integer number (84463133119353).

Almost surely, 2^{225235021651606} is an apocalyptic number.

225235021651606 is a deficient number, since it is larger than the sum of its proper divisors (112617510825806).

225235021651606 is a wasteful number, since it uses less digits than its factorization.

225235021651606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112617510825805.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 225235021651606 in words is "two hundred twenty-five trillion, two hundred thirty-five billion, twenty-one million, six hundred fifty-one thousand, six hundred six".