16947907920 has 360 divisors, whose sum is σ = 61286434560. Its totient is φ = 4195676160.

The previous prime is 16947907913. The next prime is 16947907967. The reversal of 16947907920 is 2970974961.

16947907920 is a `hidden beast` number, since 169 + 479 + 0 + 7 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16437805 + ... + 16438835.

It is an arithmetic number, because the mean of its divisors is an integer number (170240096).

Almost surely, 2^16947907920 is an apocalyptic number.

16947907920 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 16947907920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30643217280).

16947907920 is an abundant number, since it is smaller than the sum of its proper divisors (44338526640).

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

16947907920 is a wasteful number, since it uses less digits than its factorization.

16947907920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 16947907920 in words is "sixteen billion, nine hundred forty-seven million, nine hundred seven thousand, nine hundred twenty".