122663666 has 8 divisors (see below), whose sum is σ = 184055004. Its totient is φ = 61312000.

The previous prime is 122663641. The next prime is 122663689. The reversal of 122663666 is 666366221.

It can be written as a sum of positive squares in 2 ways, for example, as 122434225 + 229441 = 11065^2 + 479^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335 + ... + 15666.

Almost surely, 2^122663666 is an apocalyptic number.

122663666 is a deficient number, since it is larger than the sum of its proper divisors (61391338).

122663666 is a wasteful number, since it uses less digits than its factorization.

122663666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19836.

The product of its digits is 93312, while the sum is 38.

The square root of 122663666 is about 11075.3630188811. The cubic root of 122663666 is about 496.8652760831.

The spelling of 122663666 in words is "one hundred twenty-two million, six hundred sixty-three thousand, six hundred sixty-six".