20079699885 has 48 divisors (see below), whose sum is σ = 40256221824. Its totient is φ = 9068685696.

The previous prime is 20079699883. The next prime is 20079699901. The reversal of 20079699885 is 58899697002.

It is not a de Polignac number, because 20079699885 - 2¹ = 20079699883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20079699883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 357862 + ... + 410151.

It is an arithmetic number, because the mean of its divisors is an integer number (838671288).

Almost surely, 2^20079699885 is an apocalyptic number.

It is an amenable number.

20079699885 is an abundant number, since it is smaller than the sum of its proper divisors (20176521939).

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

20079699885 is a wasteful number, since it uses less digits than its factorization.

20079699885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768114 (or 768111 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 20079699885 in words is "twenty billion, seventy-nine million, six hundred ninety-nine thousand, eight hundred eighty-five".