1200617646166 has 8 divisors (see below), whose sum is σ = 1800933167880. Its totient is φ = 600306590208.

The previous prime is 1200617646149. The next prime is 1200617646167. The reversal of 1200617646166 is 6616467160021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200617646167) by changing a digit.

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, 334891 + ... + 1585366.

It is an arithmetic number, because the mean of its divisors is an integer number (225116645985).

Almost surely, 2^{1200617646166} is an apocalyptic number.

1200617646166 is a deficient number, since it is larger than the sum of its proper divisors (600315521714).

1200617646166 is a wasteful number, since it uses less digits than its factorization.

1200617646166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232878.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 1200617646166 in words is "one trillion, two hundred billion, six hundred seventeen million, six hundred forty-six thousand, one hundred sixty-six".