20332993969 has 2 divisors, whose sum is σ = 20332993970. Its totient is φ = 20332993968.

The previous prime is 20332993937. The next prime is 20332993979. The reversal of 20332993969 is 96939923302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15251015025 + 5081978944 = 123495^2 + 71288^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332993969 - 2⁵ = 20332993937 is a prime.

It is a super-2 number, since 2×20332993969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20332993979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166496984 + 10166496985.

It is an arithmetic number, because the mean of its divisors is an integer number (10166496985).

Almost surely, 2^20332993969 is an apocalyptic number.

It is an amenable number.

20332993969 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332993969 is an equidigital number, since it uses as much as digits as its factorization.

20332993969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4251528, while the sum is 55.

The spelling of 20332993969 in words is "twenty billion, three hundred thirty-two million, nine hundred ninety-three thousand, nine hundred sixty-nine".