20900080698 has 16 divisors (see below), whose sum is σ = 47771613120. Its totient is φ = 5971451616.

The previous prime is 20900080651. The next prime is 20900080709. The reversal of 20900080698 is 89608000902.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 497620969 = 20900080698 / (2 + 0 + 9 + 0 + 0 + 0 + 8 + 0 + 6 + 9 + 8).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248810443 + ... + 248810526.

It is an arithmetic number, because the mean of its divisors is an integer number (2985725820).

Almost surely, 2^20900080698 is an apocalyptic number.

20900080698 is an abundant number, since it is smaller than the sum of its proper divisors (26871532422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20900080698 is a wasteful number, since it uses less digits than its factorization.

20900080698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497620981.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 20900080698 in words is "twenty billion, nine hundred million, eighty thousand, six hundred ninety-eight".