120566663 has 8 divisors (see below), whose sum is σ = 137957760. Its totient is φ = 103217400.

The previous prime is 120566651. The next prime is 120566671. The reversal of 120566663 is 366665021.

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

It is a cyclic number.

It is not a de Polignac number, because 120566663 - 2¹⁶ = 120501127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120566063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4013 + ... + 16038.

It is an arithmetic number, because the mean of its divisors is an integer number (17244720).

Almost surely, 2^120566663 is an apocalyptic number.

120566663 is a deficient number, since it is larger than the sum of its proper divisors (17391097).

120566663 is an equidigital number, since it uses as much as digits as its factorization.

120566663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20917.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 120566663 is about 10980.2851966604. The cubic root of 120566663 is about 494.0175910404.

The spelling of 120566663 in words is "one hundred twenty million, five hundred sixty-six thousand, six hundred sixty-three".