20105093268 has 60 divisors (see below), whose sum is σ = 56601672820. Its totient is φ = 6186181248.

The previous prime is 20105093251. The next prime is 20105093279. The reversal of 20105093268 is 86239050102.

It can be written as a sum of positive squares in 2 ways, for example, as 9001834884 + 11103258384 = 94878^2 + 105372^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2382433 + ... + 2390856.

Almost surely, 2^20105093268 is an apocalyptic number.

It is an amenable number.

20105093268 is an abundant number, since it is smaller than the sum of its proper divisors (36496579552).

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

20105093268 is a wasteful number, since it uses less digits than its factorization.

20105093268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773318 (or 4773307 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 20105093268 in words is "twenty billion, one hundred five million, ninety-three thousand, two hundred sixty-eight".