20125601425266 has 16 divisors (see below), whose sum is σ = 40254842661600. Its totient is φ = 6707927173248.

The previous prime is 20125601425207. The next prime is 20125601425283. The reversal of 20125601425266 is 66252410652102.

It is a happy number.

It is a Curzon number.

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, 151586911 + ... + 151719618.

It is an arithmetic number, because the mean of its divisors is an integer number (2515927666350).

Almost surely, 2^{20125601425266} is an apocalyptic number.

20125601425266 is an abundant number, since it is smaller than the sum of its proper divisors (20129241236334).

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

20125601425266 is a wasteful number, since it uses less digits than its factorization.

20125601425266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303317593.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 20125601425266 in words is "twenty trillion, one hundred twenty-five billion, six hundred one million, four hundred twenty-five thousand, two hundred sixty-six".