68380164 has 36 divisors (see below), whose sum is σ = 181949040. Its totient is φ = 21593520.

The previous prime is 68380163. The next prime is 68380177. The reversal of 68380164 is 46108386.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68380163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49302 + ... + 50669.

It is an arithmetic number, because the mean of its divisors is an integer number (5054140).

Almost surely, 2^68380164 is an apocalyptic number.

It is an amenable number.

68380164 is an abundant number, since it is smaller than the sum of its proper divisors (113568876).

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

68380164 is a wasteful number, since it uses less digits than its factorization.

68380164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100000 (or 99995 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68380164 is about 8269.2299520572. The cubic root of 68380164 is about 408.9247335310.

It can be divided in two parts, 683801 and 64, that added together give a triangular number (683865 = T₁₁₆₉).

The spelling of 68380164 in words is "sixty-eight million, three hundred eighty thousand, one hundred sixty-four".