16980105 has 16 divisors (see below), whose sum is σ = 27261504. Its totient is φ = 9024960.

The previous prime is 16980097. The next prime is 16980169. The reversal of 16980105 is 50108961.

It is a happy number.

It is not a de Polignac number, because 16980105 - 2³ = 16980097 is a prime.

It is a super-2 number, since 2×16980105² = 576647931622050, which contains 22 as substring.

It is a Curzon 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, 2970 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (1703844).

Almost surely, 2^16980105 is an apocalyptic number.

16980105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16980105 is a deficient number, since it is larger than the sum of its proper divisors (10281399).

16980105 is a wasteful number, since it uses less digits than its factorization.

16980105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 16980105 is about 4120.6922962046. The cubic root of 16980105 is about 257.0278147208.

The spelling of 16980105 in words is "sixteen million, nine hundred eighty thousand, one hundred five".