9122780566 has 4 divisors (see below), whose sum is σ = 13684170852. Its totient is φ = 4561390282.

The previous prime is 9122780561. The next prime is 9122780591. The reversal of 9122780566 is 6650872219.

9122780566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9122780561) 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 as a sum of consecutive naturals, namely, 2280695140 + ... + 2280695143.

It is an arithmetic number, because the mean of its divisors is an integer number (3421042713).

Almost surely, 2^9122780566 is an apocalyptic number.

9122780566 is a deficient number, since it is larger than the sum of its proper divisors (4561390286).

9122780566 is a wasteful number, since it uses less digits than its factorization.

9122780566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561390285.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 9122780566 is about 95513.2481177350. The cubic root of 9122780566 is about 2089.5001640418.

The spelling of 9122780566 in words is "nine billion, one hundred twenty-two million, seven hundred eighty thousand, five hundred sixty-six".