755522666 has 8 divisors (see below), whose sum is σ = 1133724900. Its totient is φ = 377614368.

The previous prime is 755522657. The next prime is 755522681. The reversal of 755522666 is 666225557.

It can be written as a sum of positive squares in 2 ways, for example, as 662805025 + 92717641 = 25745^2 + 9629^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66941 + ... + 77408.

Almost surely, 2^755522666 is an apocalyptic number.

755522666 is a deficient number, since it is larger than the sum of its proper divisors (378202234).

755522666 is a wasteful number, since it uses less digits than its factorization.

755522666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146968.

The product of its digits is 756000, while the sum is 44.

The square root of 755522666 is about 27486.7725642717. The cubic root of 755522666 is about 910.7849227361.

The spelling of 755522666 in words is "seven hundred fifty-five million, five hundred twenty-two thousand, six hundred sixty-six".