756076666 has 16 divisors (see below), whose sum is σ = 1201865256. Its totient is φ = 355493376.

The previous prime is 756076637. The next prime is 756076691. The reversal of 756076666 is 666670657.

It can be written as a sum of positive squares in 4 ways, for example, as 747202225 + 8874441 = 27335^2 + 2979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33070 + ... + 51046.

Almost surely, 2^756076666 is an apocalyptic number.

756076666 is a deficient number, since it is larger than the sum of its proper divisors (445788590).

756076666 is a wasteful number, since it uses less digits than its factorization.

756076666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19233.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The square root of 756076666 is about 27496.8482921225. The cubic root of 756076666 is about 911.0074845866.

The spelling of 756076666 in words is "seven hundred fifty-six million, seventy-six thousand, six hundred sixty-six".