68222066 has 16 divisors (see below), whose sum is σ = 112745088. Its totient is φ = 30702000.

The previous prime is 68222059. The next prime is 68222069. The reversal of 68222066 is 66022286.

It is not an unprimeable number, because it can be changed into a prime (68222069) 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, 13130 + ... + 17573.

It is an arithmetic number, because the mean of its divisors is an integer number (7046568).

Almost surely, 2^68222066 is an apocalyptic number.

68222066 is a deficient number, since it is larger than the sum of its proper divisors (44523022).

68222066 is a wasteful number, since it uses less digits than its factorization.

68222066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30817.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 68222066 is about 8259.6650053135. The cubic root of 68222066 is about 408.6093395750.

It can be divided in two parts, 682220 and 66, that added together give a palindrome (682286).

The spelling of 68222066 in words is "sixty-eight million, two hundred twenty-two thousand, sixty-six".