66358560763 has 4 divisors (see below), whose sum is σ = 72391157208. Its totient is φ = 60325964320.

The previous prime is 66358560761. The next prime is 66358560773. The reversal of 66358560763 is 36706585366.

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 66358560763 - 2¹ = 66358560761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66358560761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3016298206 + ... + 3016298227.

It is an arithmetic number, because the mean of its divisors is an integer number (18097789302).

Almost surely, 2^66358560763 is an apocalyptic number.

66358560763 is a deficient number, since it is larger than the sum of its proper divisors (6032596445).

66358560763 is a wasteful number, since it uses less digits than its factorization.

66358560763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032596444.

The product of its (nonzero) digits is 16329600, while the sum is 55.

The spelling of 66358560763 in words is "sixty-six billion, three hundred fifty-eight million, five hundred sixty thousand, seven hundred sixty-three".