120657668 has 6 divisors (see below), whose sum is σ = 211150926. Its totient is φ = 60328832.

The previous prime is 120657631. The next prime is 120657679. The reversal of 120657668 is 866756021.

It can be written as a sum of positive squares in only one way, i.e., 87572164 + 33085504 = 9358^2 + 5752^2 .

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 as a sum of consecutive naturals, namely, 15082205 + ... + 15082212.

It is an arithmetic number, because the mean of its divisors is an integer number (35191821).

Almost surely, 2^120657668 is an apocalyptic number.

It is an amenable number.

120657668 is a deficient number, since it is larger than the sum of its proper divisors (90493258).

120657668 is a wasteful number, since it uses less digits than its factorization.

120657668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30164421 (or 30164419 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 120657668 is about 10984.4284330137. The cubic root of 120657668 is about 494.1418563580.

The spelling of 120657668 in words is "one hundred twenty million, six hundred fifty-seven thousand, six hundred sixty-eight".