68646120 has 32 divisors (see below), whose sum is σ = 205938720. Its totient is φ = 18305600.

The previous prime is 68646113. The next prime is 68646131. The reversal of 68646120 is 2164686.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285906 + ... + 286145.

It is an arithmetic number, because the mean of its divisors is an integer number (6435585).

Almost surely, 2^68646120 is an apocalyptic number.

68646120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68646120 is an abundant number, since it is smaller than the sum of its proper divisors (137292600).

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

68646120 is a wasteful number, since it uses less digits than its factorization.

68646120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572065 (or 572061 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68646120 is about 8285.2954081312. The cubic root of 68646120 is about 409.4542013689.

The spelling of 68646120 in words is "sixty-eight million, six hundred forty-six thousand, one hundred twenty".