66074762203 has 4 divisors (see below), whose sum is σ = 67157955088. Its totient is φ = 64991569320.

The previous prime is 66074762191. The next prime is 66074762209. The reversal of 66074762203 is 30226747066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66074762203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66074762203.

It is not an unprimeable number, because it can be changed into a prime (66074762209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541596351 + ... + 541596472.

It is an arithmetic number, because the mean of its divisors is an integer number (16789488772).

Almost surely, 2^66074762203 is an apocalyptic number.

66074762203 is a deficient number, since it is larger than the sum of its proper divisors (1083192885).

66074762203 is a wasteful number, since it uses less digits than its factorization.

66074762203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083192884.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 66074762203 in words is "sixty-six billion, seventy-four million, seven hundred sixty-two thousand, two hundred three".