66503743276 has 12 divisors (see below), whose sum is σ = 117024544000. Its totient is φ = 33068159280.

The previous prime is 66503743223. The next prime is 66503743289. The reversal of 66503743276 is 67234730566.

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, 45927276 + ... + 45928723.

Almost surely, 2^66503743276 is an apocalyptic number.

It is an amenable number.

66503743276 is a deficient number, since it is larger than the sum of its proper divisors (50520800724).

66503743276 is a wasteful number, since it uses less digits than its factorization.

66503743276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91856184 (or 91856182 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 49.

The spelling of 66503743276 in words is "sixty-six billion, five hundred three million, seven hundred forty-three thousand, two hundred seventy-six".