68161270 has 16 divisors (see below), whose sum is σ = 125683488. Its totient is φ = 26599360.

The previous prime is 68161243. The next prime is 68161271. The reversal of 68161270 is 7216186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68161271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82714 + ... + 83533.

It is an arithmetic number, because the mean of its divisors is an integer number (7855218).

Almost surely, 2^68161270 is an apocalyptic number.

68161270 is a deficient number, since it is larger than the sum of its proper divisors (57522218).

68161270 is a wasteful number, since it uses less digits than its factorization.

68161270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166295.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 68161270 is about 8255.9838904882. The cubic root of 68161270 is about 408.4879262856.

The spelling of 68161270 in words is "sixty-eight million, one hundred sixty-one thousand, two hundred seventy".