7766222152 has 32 divisors (see below), whose sum is σ = 16105635000. Its totient is φ = 3487532544.

The previous prime is 7766222141. The next prime is 7766222153. The reversal of 7766222152 is 2512226677.

It can be written as a sum of positive squares in 4 ways, for example, as 7766191876 + 30276 = 88126^2 + 174^2 .

It is a super-2 number, since 2×7766222152² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7766222153) 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 7 ways as a sum of consecutive naturals, for example, 1005277 + ... + 1012972.

Almost surely, 2^7766222152 is an apocalyptic number.

It is an amenable number.

7766222152 is an abundant number, since it is smaller than the sum of its proper divisors (8339412848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7766222152 is a wasteful number, since it uses less digits than its factorization.

7766222152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018305 (or 2018301 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 7766222152 is about 88126.1717766067. The cubic root of 7766222152 is about 1980.3256064185.

The spelling of 7766222152 in words is "seven billion, seven hundred sixty-six million, two hundred twenty-two thousand, one hundred fifty-two".