16690047920 has 120 divisors (see below), whose sum is σ = 48021899616. Its totient is φ = 5282095104.

The previous prime is 16690047901. The next prime is 16690047943. The reversal of 16690047920 is 2974009661.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6464 + ... + 182816.

Almost surely, 2^16690047920 is an apocalyptic number.

16690047920 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 16690047920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24010949808).

16690047920 is an abundant number, since it is smaller than the sum of its proper divisors (31331851696).

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

16690047920 is a wasteful number, since it uses less digits than its factorization.

16690047920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176399 (or 176380 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 16690047920 in words is "sixteen billion, six hundred ninety million, forty-seven thousand, nine hundred twenty".