16660867 has 8 divisors (see below), whose sum is σ = 17676576. Its totient is φ = 15649152.

The previous prime is 16660837. The next prime is 16660871. The reversal of 16660867 is 76806661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16660867 - 2¹⁵ = 16628099 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (16660807) 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, 16213 + ... + 17209.

It is an arithmetic number, because the mean of its divisors is an integer number (2209572).

Almost surely, 2^16660867 is an apocalyptic number.

16660867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16660867 is a deficient number, since it is larger than the sum of its proper divisors (1015709).

16660867 is an equidigital number, since it uses as much as digits as its factorization.

16660867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 16660867 is about 4081.7725316338. The cubic root of 16660867 is about 255.4068450986.

The spelling of 16660867 in words is "sixteen million, six hundred sixty thousand, eight hundred sixty-seven".