20005513112 has 16 divisors (see below), whose sum is σ = 40395747840. Its totient is φ = 9233313696.

The previous prime is 20005513109. The next prime is 20005513133. The reversal of 20005513112 is 21131550002.

It is a happy number.

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, 96180248 + ... + 96180455.

It is an arithmetic number, because the mean of its divisors is an integer number (2524734240).

Almost surely, 2^20005513112 is an apocalyptic number.

It is an amenable number.

20005513112 is an abundant number, since it is smaller than the sum of its proper divisors (20390234728).

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

20005513112 is a wasteful number, since it uses less digits than its factorization.

20005513112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192360722 (or 192360718 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The spelling of 20005513112 in words is "twenty billion, five million, five hundred thirteen thousand, one hundred twelve".