120663554 has 8 divisors (see below), whose sum is σ = 197449488. Its totient is φ = 54847060.

The previous prime is 120663539. The next prime is 120663581. The reversal of 120663554 is 455366021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 120663554.

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 3 ways as a sum of consecutive naturals, for example, 2742332 + ... + 2742375.

It is an arithmetic number, because the mean of its divisors is an integer number (24681186).

Almost surely, 2^120663554 is an apocalyptic number.

120663554 is a deficient number, since it is larger than the sum of its proper divisors (76785934).

120663554 is a wasteful number, since it uses less digits than its factorization.

120663554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484720.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 120663554 is about 10984.6963544743. The cubic root of 120663554 is about 494.1498914093.

The spelling of 120663554 in words is "one hundred twenty million, six hundred sixty-three thousand, five hundred fifty-four".