66736063766 has 8 divisors (see below), whose sum is σ = 100162675440. Its totient is φ = 33348505288.

The previous prime is 66736063741. The next prime is 66736063777.

66736063766 is nontrivially palindromic in base 10.

66736063766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9759026 + ... + 9765861.

It is an arithmetic number, because the mean of its divisors is an integer number (12520334430).

Almost surely, 2^66736063766 is an apocalyptic number.

66736063766 is a deficient number, since it is larger than the sum of its proper divisors (33426611674).

66736063766 is a wasteful number, since it uses less digits than its factorization.

66736063766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19526598.

The product of its (nonzero) digits is 20575296, while the sum is 56.

The spelling of 66736063766 in words is "sixty-six billion, seven hundred thirty-six million, sixty-three thousand, seven hundred sixty-six".