66282219806 has 16 divisors (see below), whose sum is σ = 108566848368. Its totient is φ = 30099105600.

The previous prime is 66282219803. The next prime is 66282219833. The reversal of 66282219806 is 60891228266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66282219803) 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, 1435565 + ... + 1481016.

It is an arithmetic number, because the mean of its divisors is an integer number (6785428023).

Almost surely, 2^66282219806 is an apocalyptic number.

66282219806 is a deficient number, since it is larger than the sum of its proper divisors (42284628562).

66282219806 is a wasteful number, since it uses less digits than its factorization.

66282219806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917627.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 66282219806 in words is "sixty-six billion, two hundred eighty-two million, two hundred nineteen thousand, eight hundred six".