20702016499 has 2 divisors, whose sum is σ = 20702016500. Its totient is φ = 20702016498.

The previous prime is 20702016463. The next prime is 20702016521. The reversal of 20702016499 is 99461020702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20702016499 - 2²⁹ = 20165145587 is a prime.

It is not a weakly prime, because it can be changed into another prime (20702017499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10351008249 + 10351008250.

It is an arithmetic number, because the mean of its divisors is an integer number (10351008250).

Almost surely, 2^20702016499 is an apocalyptic number.

20702016499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20702016499 is an equidigital number, since it uses as much as digits as its factorization.

20702016499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 20702016499 in words is "twenty billion, seven hundred two million, sixteen thousand, four hundred ninety-nine".