20325013266 has 16 divisors (see below), whose sum is σ = 40668933024. Its totient is φ = 6771853344.

The previous prime is 20325013253. The next prime is 20325013337. The reversal of 20325013266 is 66231052302.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773776 + ... + 799611.

It is an arithmetic number, because the mean of its divisors is an integer number (2541808314).

Almost surely, 2^20325013266 is an apocalyptic number.

20325013266 is an abundant number, since it is smaller than the sum of its proper divisors (20343919758).

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

20325013266 is a wasteful number, since it uses less digits than its factorization.

20325013266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575545.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 20325013266 its reverse (66231052302), we get a palindrome (86556065568).

The spelling of 20325013266 in words is "twenty billion, three hundred twenty-five million, thirteen thousand, two hundred sixty-six".