20950111444 has 48 divisors (see below), whose sum is σ = 39265228800. Its totient is φ = 9762875136.

The previous prime is 20950111411. The next prime is 20950111513. The reversal of 20950111444 is 44411105902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371677 + ... + 424315.

It is an arithmetic number, because the mean of its divisors is an integer number (818025600).

Almost surely, 2^20950111444 is an apocalyptic number.

It is an amenable number.

20950111444 is a deficient number, since it is larger than the sum of its proper divisors (18315117356).

20950111444 is a wasteful number, since it uses less digits than its factorization.

20950111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52792 (or 52790 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 20950111444 in words is "twenty billion, nine hundred fifty million, one hundred eleven thousand, four hundred forty-four".