20795964320 has 48 divisors (see below), whose sum is σ = 49489134408. Its totient is φ = 8257658880.

The previous prime is 20795964307. The next prime is 20795964353. The reversal of 20795964320 is 2346959702.

It can be written as a sum of positive squares in 4 ways, for example, as 19297655056 + 1498309264 = 138916^2 + 38708^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452441 + ... + 496280.

Almost surely, 2^20795964320 is an apocalyptic number.

20795964320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20795964320 is an abundant number, since it is smaller than the sum of its proper divisors (28693170088).

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

20795964320 is a wasteful number, since it uses less digits than its factorization.

20795964320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948873 (or 948865 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 20795964320 in words is "twenty billion, seven hundred ninety-five million, nine hundred sixty-four thousand, three hundred twenty".