16645082 has 4 divisors (see below), whose sum is σ = 24967626. Its totient is φ = 8322540.

The previous prime is 16645081. The next prime is 16645087. The reversal of 16645082 is 28054661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28054661 = 719 ⋅39019.

It can be written as a sum of positive squares in only one way, i.e., 14737921 + 1907161 = 3839^2 + 1381^2 .

It is not an unprimeable number, because it can be changed into a prime (16645081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4161269 + ... + 4161272.

Almost surely, 2^16645082 is an apocalyptic number.

16645082 is a deficient number, since it is larger than the sum of its proper divisors (8322544).

16645082 is an equidigital number, since it uses as much as digits as its factorization.

16645082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322543.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 16645082 is about 4079.8384771949. The cubic root of 16645082 is about 255.3261596029.

The spelling of 16645082 in words is "sixteen million, six hundred forty-five thousand, eighty-two".