68164942230 has 640 divisors, whose sum is σ = 236198246400. Its totient is φ = 13984850880.

The previous prime is 68164942189. The next prime is 68164942231. The reversal of 68164942230 is 3224946186.

68164942230 is a `hidden beast` number, since 68 + 164 + 9 + 422 + 3 + 0 = 666.

It is a super-3 number, since 3×68164942230³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68164942231) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 862847331 + ... + 862847409.

It is an arithmetic number, because the mean of its divisors is an integer number (369059760).

Almost surely, 2^68164942230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68164942230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118099123200).

68164942230 is an abundant number, since it is smaller than the sum of its proper divisors (168033304170).

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

68164942230 is an equidigital number, since it uses as much as digits as its factorization.

68164942230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 68164942230 in words is "sixty-eight billion, one hundred sixty-four million, nine hundred forty-two thousand, two hundred thirty".