68655120 has 40 divisors (see below), whose sum is σ = 212831616. Its totient is φ = 18307968.

The previous prime is 68655107. The next prime is 68655121. The reversal of 68655120 is 2155686.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (68655121) 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, 142792 + ... + 143271.

Almost surely, 2^68655120 is an apocalyptic number.

68655120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68655120 is an abundant number, since it is smaller than the sum of its proper divisors (144176496).

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

68655120 is a wasteful number, since it uses less digits than its factorization.

68655120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286079 (or 286073 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 68655120 is about 8285.8385212361. The cubic root of 68655120 is about 409.4720947171.

The spelling of 68655120 in words is "sixty-eight million, six hundred fifty-five thousand, one hundred twenty".