16261680 has 40 divisors (see below), whose sum is σ = 50411952. Its totient is φ = 4336384.

The previous prime is 16261669. The next prime is 16261691. The reversal of 16261680 is 8616261.

It is an interprime number because it is at equal distance from previous prime (16261669) and next prime (16261691).

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33639 + ... + 34118.

Almost surely, 2^16261680 is an apocalyptic number.

16261680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16261680 is an abundant number, since it is smaller than the sum of its proper divisors (34150272).

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

16261680 is a wasteful number, since it uses less digits than its factorization.

16261680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67773 (or 67767 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16261680 is about 4032.5773396179. The cubic root of 16261680 is about 253.3505220716.

The spelling of 16261680 in words is "sixteen million, two hundred sixty-one thousand, six hundred eighty".