13650663 has 16 divisors (see below), whose sum is σ = 20081376. Its totient is φ = 8194560.

The previous prime is 13650631. The next prime is 13650667. The reversal of 13650663 is 36605631.

13650663 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13650663 - 2⁵ = 13650631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13650663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 5867.

It is an arithmetic number, because the mean of its divisors is an integer number (1255086).

Almost surely, 2^13650663 is an apocalyptic number.

13650663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13650663 is a deficient number, since it is larger than the sum of its proper divisors (6430713).

13650663 is a wasteful number, since it uses less digits than its factorization.

13650663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 13650663 is about 3694.6803650654. The cubic root of 13650663 is about 238.9926703050.

The spelling of 13650663 in words is "thirteen million, six hundred fifty thousand, six hundred sixty-three".