16841664 has 84 divisors (see below), whose sum is σ = 55183024. Its totient is φ = 4810752.

The previous prime is 16841653. The next prime is 16841677. The reversal of 16841664 is 46614861.

It is a tau number, because it is divible by the number of its divisors (84).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1944 + ... + 6120.

Almost surely, 2^16841664 is an apocalyptic number.

16841664 is a gapful number since it is divisible by the number (14) 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 16841664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27591512).

16841664 is an abundant number, since it is smaller than the sum of its proper divisors (38341360).

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

16841664 is a wasteful number, since it uses less digits than its factorization.

16841664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4189 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 16841664 is about 4103.8596467228. The cubic root of 16841664 is about 256.3273806363.

The spelling of 16841664 in words is "sixteen million, eight hundred forty-one thousand, six hundred sixty-four".