7766561122 has 8 divisors (see below), whose sum is σ = 11650353372. Its totient is φ = 3883110000.

The previous prime is 7766561113. The next prime is 7766561149. The reversal of 7766561122 is 2211656677.

It can be written as a sum of positive squares in 2 ways, for example, as 6140132881 + 1626428241 = 78359^2 + 40329^2 .

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

It is an unprimeable number.

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, 17629 + ... + 125872.

Almost surely, 2^7766561122 is an apocalyptic number.

7766561122 is a deficient number, since it is larger than the sum of its proper divisors (3883792250).

7766561122 is a wasteful number, since it uses less digits than its factorization.

7766561122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170564.

The product of its digits is 211680, while the sum is 43.

The square root of 7766561122 is about 88128.0949640919. The cubic root of 7766561122 is about 1980.3544175612.

The spelling of 7766561122 in words is "seven billion, seven hundred sixty-six million, five hundred sixty-one thousand, one hundred twenty-two".