20083557012 has 12 divisors (see below), whose sum is σ = 46861633056. Its totient is φ = 6694519000.

The previous prime is 20083557001. The next prime is 20083557037. The reversal of 20083557012 is 21075538002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836814864 + ... + 836814887.

It is an arithmetic number, because the mean of its divisors is an integer number (3905136088).

Almost surely, 2^20083557012 is an apocalyptic number.

It is an amenable number.

20083557012 is an abundant number, since it is smaller than the sum of its proper divisors (26778076044).

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

20083557012 is a wasteful number, since it uses less digits than its factorization.

20083557012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673629758 (or 1673629756 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 20083557012 in words is "twenty billion, eighty-three million, five hundred fifty-seven thousand, twelve".