16920707620 has 48 divisors (see below), whose sum is σ = 37197957888. Its totient is φ = 6453138560.

The previous prime is 16920707611. The next prime is 16920707623. The reversal of 16920707620 is 2670702961.

It is not an unprimeable number, because it can be changed into a prime (16920707623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83922 + ... + 202198.

It is an arithmetic number, because the mean of its divisors is an integer number (774957456).

Almost surely, 2^16920707620 is an apocalyptic number.

16920707620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16920707620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18598978944).

16920707620 is an abundant number, since it is smaller than the sum of its proper divisors (20277250268).

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

16920707620 is a wasteful number, since it uses less digits than its factorization.

16920707620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118620 (or 118618 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 16920707620 in words is "sixteen billion, nine hundred twenty million, seven hundred seven thousand, six hundred twenty".