20946823147008 has 160 divisors (see below), whose sum is σ = 67640783569920. Its totient is φ = 6347522119680.

The previous prime is 20946823147001. The next prime is 20946823147039. The reversal of 20946823147008 is 80074132864902.

20946823147008 is a `hidden beast` number, since 2 + 0 + 94 + 6 + 82 + 3 + 1 + 470 + 0 + 8 = 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 (20946823147001) 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, 68722960 + ... + 69027087.

It is an arithmetic number, because the mean of its divisors is an integer number (422754897312).

Almost surely, 2^{20946823147008} is an apocalyptic number.

It is an amenable number.

20946823147008 is an abundant number, since it is smaller than the sum of its proper divisors (46693960422912).

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

20946823147008 is a wasteful number, since it uses less digits than its factorization.

20946823147008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137750085 (or 137750063 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 20946823147008 in words is "twenty trillion, nine hundred forty-six billion, eight hundred twenty-three million, one hundred forty-seven thousand, eight".