120117678 has 16 divisors (see below), whose sum is σ = 240782976. Its totient is φ = 39947960.

The previous prime is 120117671. The next prime is 120117737. The reversal of 120117678 is 876711021.

It is a super-2 number, since 2×120117678² = 28856513136223368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120117671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19938 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (15048936).

Almost surely, 2^120117678 is an apocalyptic number.

120117678 is an abundant number, since it is smaller than the sum of its proper divisors (120665298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120117678 is a wasteful number, since it uses less digits than its factorization.

120117678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45639.

The product of its (nonzero) digits is 4704, while the sum is 33.

The square root of 120117678 is about 10959.8210751818. The cubic root of 120117678 is about 493.4035949152.

Adding to 120117678 its reverse (876711021), we get a palindrome (996828699).

The spelling of 120117678 in words is "one hundred twenty million, one hundred seventeen thousand, six hundred seventy-eight".