66365063 has 8 divisors (see below), whose sum is σ = 68279328. Its totient is φ = 64475424.

The previous prime is 66365053. The next prime is 66365113. The reversal of 66365063 is 36056366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66365063 - 2⁸ = 66364807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66365003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620 + ... + 11537.

It is an arithmetic number, because the mean of its divisors is an integer number (8534916).

Almost surely, 2^66365063 is an apocalyptic number.

66365063 is a deficient number, since it is larger than the sum of its proper divisors (1914265).

66365063 is a wasteful number, since it uses less digits than its factorization.

66365063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 66365063 is about 8146.4754955748. The cubic root of 66365063 is about 404.8677371290.

The spelling of 66365063 in words is "sixty-six million, three hundred sixty-five thousand, sixty-three".