20206444499 has 2 divisors, whose sum is σ = 20206444500. Its totient is φ = 20206444498.

The previous prime is 20206444493. The next prime is 20206444523. The reversal of 20206444499 is 99444460202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20206444499 - 2⁴ = 20206444483 is a prime.

It is a super-2 number, since 2×20206444499² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20206444493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103222249 + 10103222250.

It is an arithmetic number, because the mean of its divisors is an integer number (10103222250).

Almost surely, 2^20206444499 is an apocalyptic number.

20206444499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20206444499 is an equidigital number, since it uses as much as digits as its factorization.

20206444499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 20206444499 in words is "twenty billion, two hundred six million, four hundred forty-four thousand, four hundred ninety-nine".