68154664 has 16 divisors (see below), whose sum is σ = 128085120. Its totient is φ = 33998640.

The previous prime is 68154659. The next prime is 68154673. The reversal of 68154664 is 46645186.

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 3 ways as a sum of consecutive naturals, for example, 6072 + ... + 13159.

It is an arithmetic number, because the mean of its divisors is an integer number (8005320).

Almost surely, 2^68154664 is an apocalyptic number.

It is an amenable number.

68154664 is a deficient number, since it is larger than the sum of its proper divisors (59930456).

68154664 is a wasteful number, since it uses less digits than its factorization.

68154664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680 (or 19676 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 68154664 is about 8255.5838073391. The cubic root of 68154664 is about 408.4747293561.

The spelling of 68154664 in words is "sixty-eight million, one hundred fifty-four thousand, six hundred sixty-four".