20379561012 has 48 divisors (see below), whose sum is σ = 53002662720. Its totient is φ = 6771746016.

The previous prime is 20379560977. The next prime is 20379561017. The reversal of 20379561012 is 21016597302.

20379561012 is a `hidden beast` number, since 2 + 0 + 37 + 9 + 5 + 610 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20379561017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263398 + ... + 331869.

It is an arithmetic number, because the mean of its divisors is an integer number (1104222140).

Almost surely, 2^20379561012 is an apocalyptic number.

It is an amenable number.

20379561012 is an abundant number, since it is smaller than the sum of its proper divisors (32623101708).

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

20379561012 is a wasteful number, since it uses less digits than its factorization.

20379561012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595597 (or 595589 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 20379561012 in words is "twenty billion, three hundred seventy-nine million, five hundred sixty-one thousand, twelve".