13016646 has 16 divisors (see below), whose sum is σ = 28926000. Its totient is φ = 4338864.

The previous prime is 13016623. The next prime is 13016677. The reversal of 13016646 is 64661031.

13016646 is a `hidden beast` number, since 1 + 3 + 0 + 16 + 646 = 666.

13016646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120471 + ... + 120578.

It is an arithmetic number, because the mean of its divisors is an integer number (1807875).

Almost surely, 2^13016646 is an apocalyptic number.

13016646 is an abundant number, since it is smaller than the sum of its proper divisors (15909354).

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

13016646 is a wasteful number, since it uses less digits than its factorization.

13016646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241060 (or 241054 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13016646 is about 3607.8589218538. The cubic root of 13016646 is about 235.2337857546.

Adding to 13016646 its reverse (64661031), we get a palindrome (77677677).

The spelling of 13016646 in words is "thirteen million, sixteen thousand, six hundred forty-six".