20944153099 has 2 divisors, whose sum is σ = 20944153100. Its totient is φ = 20944153098.

The previous prime is 20944153039. The next prime is 20944153117. The reversal of 20944153099 is 99035144902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20944153099 - 2¹⁵ = 20944120331 is a prime.

It is not a weakly prime, because it can be changed into another prime (20944153039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10472076549 + 10472076550.

It is an arithmetic number, because the mean of its divisors is an integer number (10472076550).

Almost surely, 2^20944153099 is an apocalyptic number.

20944153099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20944153099 is an equidigital number, since it uses as much as digits as its factorization.

20944153099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 20944153099 in words is "twenty billion, nine hundred forty-four million, one hundred fifty-three thousand, ninety-nine".