68744071066 has 16 divisors (see below), whose sum is σ = 112495920768. Its totient is φ = 31245743200.

The previous prime is 68744071013. The next prime is 68744071069. The reversal of 68744071066 is 66017044786.

It is not an unprimeable number, because it can be changed into a prime (68744071069) 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, 452031 + ... + 584653.

It is an arithmetic number, because the mean of its divisors is an integer number (7030995048).

Almost surely, 2^68744071066 is an apocalyptic number.

68744071066 is a deficient number, since it is larger than the sum of its proper divisors (43751849702).

68744071066 is a wasteful number, since it uses less digits than its factorization.

68744071066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156197.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 68744071066 in words is "sixty-eight billion, seven hundred forty-four million, seventy-one thousand, sixty-six".