20320304642792 has 32 divisors (see below), whose sum is σ = 47502010854720. Its totient is φ = 7917001808640.

The previous prime is 20320304642791. The next prime is 20320304642801. The reversal of 20320304642792 is 29724640302302.

It is a super-2 number, since 2×20320304642792² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (20320304642791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16493753153 + ... + 16493754384.

It is an arithmetic number, because the mean of its divisors is an integer number (1484437839210).

Almost surely, 2^{20320304642792} is an apocalyptic number.

20320304642792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20320304642792 is an abundant number, since it is smaller than the sum of its proper divisors (27181706211928).

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

20320304642792 is a wasteful number, since it uses less digits than its factorization.

20320304642792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32987507561 (or 32987507557 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 20320304642792 in words is "twenty trillion, three hundred twenty billion, three hundred four million, six hundred forty-two thousand, seven hundred ninety-two".