16659002 has 4 divisors (see below), whose sum is σ = 24988506. Its totient is φ = 8329500.

The previous prime is 16658989. The next prime is 16659007. The reversal of 16659002 is 20095661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20095661 = 457 ⋅43973.

It can be written as a sum of positive squares in only one way, i.e., 16491721 + 167281 = 4061^2 + 409^2 .

It is not an unprimeable number, because it can be changed into a prime (16659007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4164749 + ... + 4164752.

Almost surely, 2^16659002 is an apocalyptic number.

16659002 is a deficient number, since it is larger than the sum of its proper divisors (8329504).

16659002 is an equidigital number, since it uses as much as digits as its factorization.

16659002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329503.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 16659002 is about 4081.5440705694. The cubic root of 16659002 is about 255.3973147514.

The spelling of 16659002 in words is "sixteen million, six hundred fifty-nine thousand, two".