16610994 has 28 divisors (see below), whose sum is σ = 37360926. Its totient is φ = 5536512.

The previous prime is 16610987. The next prime is 16610999. The reversal of 16610994 is 49901661.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 4100625 = 3537^2 + 2025^2 .

It is not an unprimeable number, because it can be changed into a prime (16610999) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 4239 + ... + 7154.

Almost surely, 2^16610994 is an apocalyptic number.

16610994 is an abundant number, since it is smaller than the sum of its proper divisors (20749932).

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

16610994 is an equidigital number, since it uses as much as digits as its factorization.

16610994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413 (or 11398 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16610994 is about 4075.6587197654. The cubic root of 16610994 is about 255.1517435936.

The spelling of 16610994 in words is "sixteen million, six hundred ten thousand, nine hundred ninety-four".