20225633631506 has 16 divisors (see below), whose sum is σ = 30618229138200. Its totient is φ = 10019895763200.

The previous prime is 20225633631433. The next prime is 20225633631517. The reversal of 20225633631506 is 60513633652202.

It can be written as a sum of positive squares in 4 ways, for example, as 20213881120225 + 11752511281 = 4495985^2 + 108409^2 .

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, 84508001 + ... + 84746996.

Almost surely, 2^{20225633631506} is an apocalyptic number.

20225633631506 is a deficient number, since it is larger than the sum of its proper divisors (10392595506694).

20225633631506 is a wasteful number, since it uses less digits than its factorization.

20225633631506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169255549.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 20225633631506 in words is "twenty trillion, two hundred twenty-five billion, six hundred thirty-three million, six hundred thirty-one thousand, five hundred six".