121650616 has 16 divisors (see below), whose sum is σ = 240100200. Its totient is φ = 57623904.

The previous prime is 121650577. The next prime is 121650637. The reversal of 121650616 is 616056121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400015 + ... + 400318.

Almost surely, 2^121650616 is an apocalyptic number.

It is an amenable number.

121650616 is a deficient number, since it is larger than the sum of its proper divisors (118449584).

121650616 is a wasteful number, since it uses less digits than its factorization.

121650616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800358 (or 800354 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 121650616 is about 11029.5338070111. The cubic root of 121650616 is about 495.4936625259.

The spelling of 121650616 in words is "one hundred twenty-one million, six hundred fifty thousand, six hundred sixteen".