7666326442 has 8 divisors (see below), whose sum is σ = 11530320516. Its totient is φ = 3822886272.

The previous prime is 7666326427. The next prime is 7666326497. The reversal of 7666326442 is 2446236667.

It can be written as a sum of positive squares in 2 ways, for example, as 7624607761 + 41718681 = 87319^2 + 6459^2 .

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

It is a super-2 number, since 2×7666326442² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7666326392 and 7666326401.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5137543 + ... + 5139034.

Almost surely, 2^7666326442 is an apocalyptic number.

7666326442 is a deficient number, since it is larger than the sum of its proper divisors (3863994074).

7666326442 is a wasteful number, since it uses less digits than its factorization.

7666326442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276952.

The product of its digits is 1741824, while the sum is 46.

The square root of 7666326442 is about 87557.5607357811. The cubic root of 7666326442 is about 1971.7980647907.

The spelling of 7666326442 in words is "seven billion, six hundred sixty-six million, three hundred twenty-six thousand, four hundred forty-two".