16715021620 has 48 divisors (see below), whose sum is σ = 40308004800. Its totient is φ = 5758283520.

The previous prime is 16715021549. The next prime is 16715021647. The reversal of 16715021620 is 2612051761.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1995225 + ... + 2003584.

It is an arithmetic number, because the mean of its divisors is an integer number (839750100).

Almost surely, 2^16715021620 is an apocalyptic number.

16715021620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16715021620 is an abundant number, since it is smaller than the sum of its proper divisors (23592983180).

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

16715021620 is a wasteful number, since it uses less digits than its factorization.

16715021620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998848 (or 3998846 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 16715021620 in words is "sixteen billion, seven hundred fifteen million, twenty-one thousand, six hundred twenty".