121650016 has 24 divisors (see below), whose sum is σ = 239791104. Its totient is φ = 60750720.

The previous prime is 121649987. The next prime is 121650019. The reversal of 121650016 is 610056121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121650019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32161 + ... + 35743.

It is an arithmetic number, because the mean of its divisors is an integer number (9991296).

Almost surely, 2^121650016 is an apocalyptic number.

121650016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121650016 is a deficient number, since it is larger than the sum of its proper divisors (118141088).

121650016 is a wasteful number, since it uses less digits than its factorization.

121650016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 121650016 is about 11029.5066072785. The cubic root of 121650016 is about 495.4928479069.

The spelling of 121650016 in words is "one hundred twenty-one million, six hundred fifty thousand, sixteen".