121416663 has 8 divisors (see below), whose sum is σ = 164305408. Its totient is φ = 79736184.

The previous prime is 121416653. The next prime is 121416671. The reversal of 121416663 is 366614121.

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

It is not a de Polignac number, because 121416663 - 2⁹ = 121416151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121416663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121416613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301831 + ... + 302232.

It is an arithmetic number, because the mean of its divisors is an integer number (20538176).

Almost surely, 2^121416663 is an apocalyptic number.

121416663 is a deficient number, since it is larger than the sum of its proper divisors (42888745).

121416663 is an equidigital number, since it uses as much as digits as its factorization.

121416663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604133.

The product of its digits is 5184, while the sum is 30.

The square root of 121416663 is about 11018.9229509966. The cubic root of 121416663 is about 495.1758216351.

The spelling of 121416663 in words is "one hundred twenty-one million, four hundred sixteen thousand, six hundred sixty-three".