20746490112 has 108 divisors (see below), whose sum is σ = 59857150080. Its totient is φ = 6910884864.

The previous prime is 20746490111. The next prime is 20746490123. The reversal of 20746490112 is 21109464702.

It is a happy number.

20746490112 is a `hidden beast` number, since 2 + 0 + 7 + 4 + 649 + 0 + 1 + 1 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20746490111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6650089 + ... + 6653207.

Almost surely, 2^20746490112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20746490112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29928575040).

20746490112 is an abundant number, since it is smaller than the sum of its proper divisors (39110659968).

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

20746490112 is a wasteful number, since it uses less digits than its factorization.

20746490112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028 (or 6011 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20746490112 in words is "twenty billion, seven hundred forty-six million, four hundred ninety thousand, one hundred twelve".