16616970 has 24 divisors (see below), whose sum is σ = 43204356. Its totient is φ = 4431168.

The previous prime is 16616947. The next prime is 16616983. The reversal of 16616970 is 7961661.

It can be written as a sum of positive squares in 2 ways, for example, as 15896169 + 720801 = 3987^2 + 849^2 .

It is a super-2 number, since 2×16616970² = 552247383961800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92227 + ... + 92406.

Almost surely, 2^16616970 is an apocalyptic number.

16616970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16616970 is an abundant number, since it is smaller than the sum of its proper divisors (26587386).

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

16616970 is a wasteful number, since it uses less digits than its factorization.

16616970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184646 (or 184643 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 16616970 is about 4076.3917868625. The cubic root of 16616970 is about 255.1823378696.

The spelling of 16616970 in words is "sixteen million, six hundred sixteen thousand, nine hundred seventy".