20733982503969 has 128 divisors (see below), whose sum is σ = 34136442880000. Its totient is φ = 11158385382144.

The previous prime is 20733982503937. The next prime is 20733982503977. The reversal of 20733982503969 is 96930528933702.

It is not a de Polignac number, because 20733982503969 - 2⁵ = 20733982503937 is a prime.

It is a super-2 number, since 2×20733982503969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20733982503919) 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, 2507431167 + ... + 2507439435.

It is an arithmetic number, because the mean of its divisors is an integer number (266690960000).

Almost surely, 2^{20733982503969} is an apocalyptic number.

It is an amenable number.

20733982503969 is a deficient number, since it is larger than the sum of its proper divisors (13402460376031).

20733982503969 is a wasteful number, since it uses less digits than its factorization.

20733982503969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052 (or 9038 counting only the distinct ones).

The product of its (nonzero) digits is 132269760, while the sum is 66.

The spelling of 20733982503969 in words is "twenty trillion, seven hundred thirty-three billion, nine hundred eighty-two million, five hundred three thousand, nine hundred sixty-nine".