66307377763 has 8 divisors (see below), whose sum is σ = 74017538496. Its totient is φ = 58877586600.

The previous prime is 66307377761. The next prime is 66307377811. The reversal of 66307377763 is 36777370366.

It is a happy number.

66307377763 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 not a de Polignac number, because 66307377763 - 2¹ = 66307377761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66307377761) 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, 70091893 + ... + 70092838.

It is an arithmetic number, because the mean of its divisors is an integer number (9252192312).

Almost surely, 2^66307377763 is an apocalyptic number.

66307377763 is a deficient number, since it is larger than the sum of its proper divisors (7710160733).

66307377763 is a wasteful number, since it uses less digits than its factorization.

66307377763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140184785.

The product of its (nonzero) digits is 14002632, while the sum is 55.

The spelling of 66307377763 in words is "sixty-six billion, three hundred seven million, three hundred seventy-seven thousand, seven hundred sixty-three".