16900217920 has 56 divisors (see below), whose sum is σ = 41541850368. Its totient is φ = 6542016000.

The previous prime is 16900217903. The next prime is 16900217927. The reversal of 16900217920 is 2971200961.

It is a self number, because there is not a number n which added to its sum of digits gives 16900217920.

It is not an unprimeable number, because it can be changed into a prime (16900217927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841906 + ... + 861745.

Almost surely, 2^16900217920 is an apocalyptic number.

16900217920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16900217920 is an abundant number, since it is smaller than the sum of its proper divisors (24641632448).

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

16900217920 is a wasteful number, since it uses less digits than its factorization.

16900217920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703699 (or 1703689 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 16900217920 in words is "sixteen billion, nine hundred million, two hundred seventeen thousand, nine hundred twenty".