68326164 has 18 divisors (see below), whose sum is σ = 172713450. Its totient is φ = 22775376.

The previous prime is 68326129. The next prime is 68326171. The reversal of 68326164 is 46162386.

68326164 is a `hidden beast` number, since 6 + 8 + 32 + 616 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44997264 + 23328900 = 6708^2 + 4830^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1897949 = 68326164 / (6 + 8 + 3 + 2 + 6 + 1 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 948939 + ... + 949010.

Almost surely, 2^68326164 is an apocalyptic number.

It is an amenable number.

68326164 is an abundant number, since it is smaller than the sum of its proper divisors (104387286).

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

68326164 is a wasteful number, since it uses less digits than its factorization.

68326164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897959 (or 1897954 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 68326164 is about 8265.9641905830. The cubic root of 68326164 is about 408.8170621948.

It can be divided in two parts, 6832 and 6164, that added together give a square (12996 = 114²).

The spelling of 68326164 in words is "sixty-eight million, three hundred twenty-six thousand, one hundred sixty-four".