66227830949 has 8 divisors (see below), whose sum is σ = 77734597248. Its totient is φ = 55232476560.

The previous prime is 66227830939. The next prime is 66227830969. The reversal of 66227830949 is 94903872266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66227830949 is a prime.

It is a super-2 number, since 2×66227830949² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66227830894 and 66227830903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66227830939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127852697 + ... + 127853214.

It is an arithmetic number, because the mean of its divisors is an integer number (9716824656).

Almost surely, 2^66227830949 is an apocalyptic number.

It is an amenable number.

66227830949 is a deficient number, since it is larger than the sum of its proper divisors (11506766299).

66227830949 is a wasteful number, since it uses less digits than its factorization.

66227830949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255705955.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 66227830949 in words is "sixty-six billion, two hundred twenty-seven million, eight hundred thirty thousand, nine hundred forty-nine".