7600006720666 has 4 divisors (see below), whose sum is σ = 11400010081002. Its totient is φ = 3800003360332.

The previous prime is 7600006720609. The next prime is 7600006720679. The reversal of 7600006720666 is 6660276000067.

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

It can be written as a sum of positive squares in only one way, i.e., 5049211232025 + 2550795488641 = 2247045^2 + 1597121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1900001680165 + ... + 1900001680168.

Almost surely, 2^{7600006720666} is an apocalyptic number.

7600006720666 is a deficient number, since it is larger than the sum of its proper divisors (3800003360336).

7600006720666 is a wasteful number, since it uses less digits than its factorization.

7600006720666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800003360335.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 7600006720666 in words is "seven trillion, six hundred billion, six million, seven hundred twenty thousand, six hundred sixty-six".