20307390658 has 16 divisors (see below), whose sum is σ = 31976651520. Its totient is φ = 9659610000.

The previous prime is 20307390643. The next prime is 20307390659. The reversal of 20307390658 is 85609370302.

It is not an unprimeable number, because it can be changed into a prime (20307390659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772093 + ... + 2779408.

It is an arithmetic number, because the mean of its divisors is an integer number (1998540720).

Almost surely, 2^20307390658 is an apocalyptic number.

20307390658 is a deficient number, since it is larger than the sum of its proper divisors (11669260862).

20307390658 is a wasteful number, since it uses less digits than its factorization.

20307390658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551593.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 20307390658 in words is "twenty billion, three hundred seven million, three hundred ninety thousand, six hundred fifty-eight".