121663266 has 8 divisors (see below), whose sum is σ = 243326544. Its totient is φ = 40554420.

The previous prime is 121663259. The next prime is 121663279. The reversal of 121663266 is 662366121.

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

121663266 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10138600 + ... + 10138611.

It is an arithmetic number, because the mean of its divisors is an integer number (30415818).

Almost surely, 2^121663266 is an apocalyptic number.

121663266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121663266 is a wasteful number, since it uses less digits than its factorization.

121663266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20277216.

The product of its digits is 15552, while the sum is 33.

The square root of 121663266 is about 11030.1072524251. The cubic root of 121663266 is about 495.5108367849.

The spelling of 121663266 in words is "one hundred twenty-one million, six hundred sixty-three thousand, two hundred sixty-six".