13666002 has 96 divisors (see below), whose sum is σ = 34670592. Its totient is φ = 3570336.

The previous prime is 13665991. The next prime is 13666019. The reversal of 13666002 is 20066631.

It is a super-2 number, since 2×13666002² = 373519221328008, 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 47 ways as a sum of consecutive naturals, for example, 290743 + ... + 290789.

It is an arithmetic number, because the mean of its divisors is an integer number (361152).

Almost surely, 2^13666002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13666002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17335296).

13666002 is an abundant number, since it is smaller than the sum of its proper divisors (21004590).

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

13666002 is a wasteful number, since it uses less digits than its factorization.

13666002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13666002 is about 3696.7556045809. The cubic root of 13666002 is about 239.0821540251.

The spelling of 13666002 in words is "thirteen million, six hundred sixty-six thousand, two".