20674947045312 has 896 divisors, whose sum is σ = 76843386470400. Its totient is φ = 5318255480832.

The previous prime is 20674947045283. The next prime is 20674947045317. The reversal of 20674947045312 is 21354074947602.

20674947045312 is a `hidden beast` number, since 2 + 0 + 67 + 4 + 9 + 47 + 0 + 4 + 531 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674947045317) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 365621713 + ... + 365678255.

Almost surely, 2^{20674947045312} 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 20674947045312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38421693235200).

20674947045312 is an abundant number, since it is smaller than the sum of its proper divisors (56168439425088).

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

20674947045312 is a wasteful number, since it uses less digits than its factorization.

20674947045312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56670 (or 56654 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 20674947045312 in words is "twenty trillion, six hundred seventy-four billion, nine hundred forty-seven million, forty-five thousand, three hundred twelve".