20269116499 has 2 divisors, whose sum is σ = 20269116500. Its totient is φ = 20269116498.

The previous prime is 20269116493. The next prime is 20269116599. The reversal of 20269116499 is 99461196202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20269116499 - 2¹⁷ = 20268985427 is a prime.

It is not a weakly prime, because it can be changed into another prime (20269116493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10134558249 + 10134558250.

It is an arithmetic number, because the mean of its divisors is an integer number (10134558250).

Almost surely, 2^20269116499 is an apocalyptic number.

20269116499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20269116499 is an equidigital number, since it uses as much as digits as its factorization.

20269116499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 20269116499 in words is "twenty billion, two hundred sixty-nine million, one hundred sixteen thousand, four hundred ninety-nine".