16611942 has 8 divisors (see below), whose sum is σ = 33223896. Its totient is φ = 5537312.

The previous prime is 16611937. The next prime is 16611961. The reversal of 16611942 is 24911661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

16611942 is an admirable number.

It is a super-2 number, since 2×16611942² = 551913234022728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384323 + ... + 1384334.

It is an arithmetic number, because the mean of its divisors is an integer number (4152987).

Almost surely, 2^16611942 is an apocalyptic number.

16611942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16611942 is a wasteful number, since it uses less digits than its factorization.

16611942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768662.

The product of its digits is 2592, while the sum is 30.

The square root of 16611942 is about 4075.7750183247. The cubic root of 16611942 is about 255.1565973921.

The spelling of 16611942 in words is "sixteen million, six hundred eleven thousand, nine hundred forty-two".