16666076 has 36 divisors (see below), whose sum is σ = 35412048. Its totient is φ = 6830208.

The previous prime is 16666061. The next prime is 16666081. The reversal of 16666076 is 67066661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2660 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (983668).

Almost surely, 2^16666076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16666076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17706024).

16666076 is an abundant number, since it is smaller than the sum of its proper divisors (18745972).

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

16666076 is a wasteful number, since it uses less digits than its factorization.

16666076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 16666076 is about 4082.4105624006. The cubic root of 16666076 is about 255.4334598726.

The spelling of 16666076 in words is "sixteen million, six hundred sixty-six thousand, seventy-six".