20268028264 has 16 divisors (see below), whose sum is σ = 41457330720. Its totient is φ = 9212740080.

The previous prime is 20268028243. The next prime is 20268028301. The reversal of 20268028264 is 46282086202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115159164 + ... + 115159339.

It is an arithmetic number, because the mean of its divisors is an integer number (2591083170).

Almost surely, 2^20268028264 is an apocalyptic number.

It is an amenable number.

20268028264 is an abundant number, since it is smaller than the sum of its proper divisors (21189302456).

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

20268028264 is a wasteful number, since it uses less digits than its factorization.

20268028264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230318520 (or 230318516 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 20268028264 in words is "twenty billion, two hundred sixty-eight million, twenty-eight thousand, two hundred sixty-four".