16620960 has 96 divisors (see below), whose sum is σ = 54093312. Its totient is φ = 4285440.

The previous prime is 16620943. The next prime is 16620971. The reversal of 16620960 is 6902661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×16620960² = 552512622643200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14322 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (563472).

Almost surely, 2^16620960 is an apocalyptic number.

16620960 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 16620960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27046656).

16620960 is an abundant number, since it is smaller than the sum of its proper divisors (37472352).

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

16620960 is a wasteful number, since it uses less digits than its factorization.

16620960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 16620960 is about 4076.8811608876. The cubic root of 16620960 is about 255.2027606872.

The spelling of 16620960 in words is "sixteen million, six hundred twenty thousand, nine hundred sixty".