20698501004 has 6 divisors (see below), whose sum is σ = 36222376764. Its totient is φ = 10349250500.

The previous prime is 20698500989. The next prime is 20698501007. The reversal of 20698501004 is 40010589602.

It is not an unprimeable number, because it can be changed into a prime (20698501007) 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 as a sum of consecutive naturals, namely, 2587312622 + ... + 2587312629.

It is an arithmetic number, because the mean of its divisors is an integer number (6037062794).

Almost surely, 2^20698501004 is an apocalyptic number.

It is an amenable number.

20698501004 is a deficient number, since it is larger than the sum of its proper divisors (15523875760).

20698501004 is a wasteful number, since it uses less digits than its factorization.

20698501004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174625255 (or 5174625253 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 20698501004 in words is "twenty billion, six hundred ninety-eight million, five hundred one thousand, four".