7513664066 has 8 divisors (see below), whose sum is σ = 11279791164. Its totient is φ = 3753733680.

The previous prime is 7513663987. The next prime is 7513664077. The reversal of 7513664066 is 6604663157.

It can be written as a sum of positive squares in 2 ways, for example, as 5154522025 + 2359142041 = 71795^2 + 48571^2 .

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546145 + ... + 1550996.

Almost surely, 2^7513664066 is an apocalyptic number.

7513664066 is a deficient number, since it is larger than the sum of its proper divisors (3766127098).

7513664066 is a wasteful number, since it uses less digits than its factorization.

7513664066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098356.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 7513664066 is about 86681.3940012503. The cubic root of 7513664066 is about 1958.6218329578.

Subtracting from 7513664066 its reverse (6604663157), we obtain a palindrome (909000909).

The spelling of 7513664066 in words is "seven billion, five hundred thirteen million, six hundred sixty-four thousand, sixty-six".