16379666 has 4 divisors (see below), whose sum is σ = 24569502. Its totient is φ = 8189832.

The previous prime is 16379663. The next prime is 16379677. The reversal of 16379666 is 66697361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14478025 + 1901641 = 3805^2 + 1379^2 .

It is not an unprimeable number, because it can be changed into a prime (16379663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4094915 + ... + 4094918.

Almost surely, 2^16379666 is an apocalyptic number.

16379666 is a deficient number, since it is larger than the sum of its proper divisors (8189836).

16379666 is an equidigital number, since it uses as much as digits as its factorization.

16379666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189835.

The product of its digits is 244944, while the sum is 44.

The square root of 16379666 is about 4047.1800058806. The cubic root of 16379666 is about 253.9617711701.

The spelling of 16379666 in words is "sixteen million, three hundred seventy-nine thousand, six hundred sixty-six".