66034763 has 4 divisors (see below), whose sum is σ = 66318408. Its totient is φ = 65751120.

The previous prime is 66034739. The next prime is 66034789. The reversal of 66034763 is 36743066.

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

It is a cyclic number.

It is not a de Polignac number, because 66034763 - 2⁶ = 66034699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66034733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141473 + ... + 141938.

It is an arithmetic number, because the mean of its divisors is an integer number (16579602).

Almost surely, 2^66034763 is an apocalyptic number.

66034763 is a deficient number, since it is larger than the sum of its proper divisors (283645).

66034763 is a wasteful number, since it uses less digits than its factorization.

66034763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283644.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 66034763 is about 8126.1776377335. The cubic root of 66034763 is about 404.1949419455.

The spelling of 66034763 in words is "sixty-six million, thirty-four thousand, seven hundred sixty-three".