20302907699 has 4 divisors (see below), whose sum is σ = 20337495864. Its totient is φ = 20268319536.

The previous prime is 20302907687. The next prime is 20302907731. The reversal of 20302907699 is 99670920302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20302907699 - 2²⁴ = 20286130483 is a prime.

It is a super-2 number, since 2×20302907699² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302987699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17293202 + ... + 17294375.

It is an arithmetic number, because the mean of its divisors is an integer number (5084373966).

Almost surely, 2^20302907699 is an apocalyptic number.

20302907699 is a deficient number, since it is larger than the sum of its proper divisors (34588165).

20302907699 is an equidigital number, since it uses as much as digits as its factorization.

20302907699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34588164.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 20302907699 in words is "twenty billion, three hundred two million, nine hundred seven thousand, six hundred ninety-nine".