13660662 has 16 divisors (see below), whose sum is σ = 27359280. Its totient is φ = 4547232.

The previous prime is 13660651. The next prime is 13660663. The reversal of 13660662 is 26606631.

It is a super-2 number, since 2×13660662² = 373227372556488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5628 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (1709955).

Almost surely, 2^13660662 is an apocalyptic number.

13660662 is an abundant number, since it is smaller than the sum of its proper divisors (13698618).

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

13660662 is a wasteful number, since it uses less digits than its factorization.

13660662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 13660662 is about 3696.0332790710. The cubic root of 13660662 is about 239.0510094610.

It can be divided in two parts, 13 and 660662, that added together give a triangular number (660675 = T₁₁₄₉).

The spelling of 13660662 in words is "thirteen million, six hundred sixty thousand, six hundred sixty-two".