66036113765 has 8 divisors (see below), whose sum is σ = 83414038560. Its totient is φ = 50048422992.

The previous prime is 66036113753. The next prime is 66036113779. The reversal of 66036113765 is 56731163066.

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 66036113765 - 2⁴ = 66036113749 is a prime.

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, 347558399 + ... + 347558588.

It is an arithmetic number, because the mean of its divisors is an integer number (10426754820).

Almost surely, 2^66036113765 is an apocalyptic number.

It is an amenable number.

66036113765 is a deficient number, since it is larger than the sum of its proper divisors (17377924795).

66036113765 is a wasteful number, since it uses less digits than its factorization.

66036113765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695117011.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 66036113765 in words is "sixty-six billion, thirty-six million, one hundred thirteen thousand, seven hundred sixty-five".