121668496 has 20 divisors (see below), whose sum is σ = 240182172. Its totient is φ = 59686016.

The previous prime is 121668493. The next prime is 121668509. The reversal of 121668496 is 694866121.

It can be written as a sum of positive squares in 2 ways, for example, as 34058896 + 87609600 = 5836^2 + 9360^2 .

It is not an unprimeable number, because it can be changed into a prime (121668493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70891 + ... + 72586.

Almost surely, 2^121668496 is an apocalyptic number.

121668496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121668496 is a deficient number, since it is larger than the sum of its proper divisors (118513676).

121668496 is a wasteful number, since it uses less digits than its factorization.

121668496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143538 (or 143532 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 121668496 is about 11030.3443282610. The cubic root of 121668496 is about 495.5179369410.

The spelling of 121668496 in words is "one hundred twenty-one million, six hundred sixty-eight thousand, four hundred ninety-six".