121661068 has 24 divisors (see below), whose sum is σ = 219159360. Its totient is φ = 59069520.

The previous prime is 121661041. The next prime is 121661077. The reversal of 121661068 is 860166121.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16483 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (9131640).

Almost surely, 2^121661068 is an apocalyptic number.

It is an amenable number.

121661068 is a deficient number, since it is larger than the sum of its proper divisors (97498292).

121661068 is a wasteful number, since it uses less digits than its factorization.

121661068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357 (or 6355 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 121661068 is about 11030.0076155912. The cubic root of 121661068 is about 495.5078527580.

The spelling of 121661068 in words is "one hundred twenty-one million, six hundred sixty-one thousand, sixty-eight".