16616042 has 4 divisors (see below), whose sum is σ = 24924066. Its totient is φ = 8308020.

The previous prime is 16616027. The next prime is 16616053. The reversal of 16616042 is 24061661.

It is a happy number.

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., 15912121 + 703921 = 3989^2 + 839^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4154009 + ... + 4154012.

Almost surely, 2^16616042 is an apocalyptic number.

16616042 is a deficient number, since it is larger than the sum of its proper divisors (8308024).

16616042 is an equidigital number, since it uses as much as digits as its factorization.

16616042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308023.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16616042 is about 4076.2779591191. The cubic root of 16616042 is about 255.1775874324.

The spelling of 16616042 in words is "sixteen million, six hundred sixteen thousand, forty-two".