65016663 has 4 divisors (see below), whose sum is σ = 86688888. Its totient is φ = 43344440.

The previous prime is 65016661. The next prime is 65016671. The reversal of 65016663 is 36661056.

65016663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65016663 - 2¹ = 65016661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65016661) 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 3 ways as a sum of consecutive naturals, for example, 10836108 + ... + 10836113.

It is an arithmetic number, because the mean of its divisors is an integer number (21672222).

Almost surely, 2^65016663 is an apocalyptic number.

65016663 is a deficient number, since it is larger than the sum of its proper divisors (21672225).

65016663 is a wasteful number, since it uses less digits than its factorization.

65016663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21672224.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 65016663 is about 8063.2910774695. The cubic root of 65016663 is about 402.1069305405.

The spelling of 65016663 in words is "sixty-five million, sixteen thousand, six hundred sixty-three".