20888801312 has 12 divisors (see below), whose sum is σ = 41124827646. Its totient is φ = 10444400640.

The previous prime is 20888801309. The next prime is 20888801327. The reversal of 20888801312 is 21310888802.

It can be written as a sum of positive squares in only one way, i.e., 19042896016 + 1845905296 = 137996^2 + 42964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20888801312.

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 as a sum of consecutive naturals, namely, 326387489 + ... + 326387552.

Almost surely, 2^20888801312 is an apocalyptic number.

It is an amenable number.

20888801312 is a deficient number, since it is larger than the sum of its proper divisors (20236026334).

20888801312 is an equidigital number, since it uses as much as digits as its factorization.

20888801312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652775051 (or 652775043 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The spelling of 20888801312 in words is "twenty billion, eight hundred eighty-eight million, eight hundred one thousand, three hundred twelve".