16923715020 has 192 divisors, whose sum is σ = 54840240000. Its totient is φ = 4327529472.

The previous prime is 16923715019. The next prime is 16923715063. The reversal of 16923715020 is 2051732961.

16923715020 is a `hidden beast` number, since 1 + 69 + 23 + 71 + 502 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2329714 + ... + 2336966.

It is an arithmetic number, because the mean of its divisors is an integer number (285626250).

Almost surely, 2^16923715020 is an apocalyptic number.

16923715020 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 16923715020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27420120000).

16923715020 is an abundant number, since it is smaller than the sum of its proper divisors (37916524980).

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

16923715020 is a wasteful number, since it uses less digits than its factorization.

16923715020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7449 (or 7441 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 16923715020 in words is "sixteen billion, nine hundred twenty-three million, seven hundred fifteen thousand, twenty".