16685020002020 has 24 divisors (see below), whose sum is σ = 35039068411200. Its totient is φ = 6673907732832.

The previous prime is 16685020001999. The next prime is 16685020002023. The reversal of 16685020002020 is 2020002058661.

16685020002020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16685020002023) 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, 4894910 + ... + 7571669.

It is an arithmetic number, because the mean of its divisors is an integer number (1459961183800).

Almost surely, 2^{16685020002020} is an apocalyptic number.

16685020002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16685020002020 is an abundant number, since it is smaller than the sum of its proper divisors (18354048409180).

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

16685020002020 is a wasteful number, since it uses less digits than its factorization.

16685020002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533507 (or 12533505 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 16685020002020 in words is "sixteen trillion, six hundred eighty-five billion, twenty million, two thousand, twenty".