68160905 has 16 divisors (see below), whose sum is σ = 86832000. Its totient is φ = 51186432.

The previous prime is 68160899. The next prime is 68160907. The reversal of 68160905 is 50906186.

It is a cyclic number.

It is not a de Polignac number, because 68160905 - 2¹⁴ = 68144521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68160907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41612 + ... + 43218.

It is an arithmetic number, because the mean of its divisors is an integer number (5427000).

Almost surely, 2^68160905 is an apocalyptic number.

It is an amenable number.

68160905 is a deficient number, since it is larger than the sum of its proper divisors (18671095).

68160905 is a wasteful number, since it uses less digits than its factorization.

68160905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 68160905 is about 8255.9617852798. The cubic root of 68160905 is about 408.4871971406.

The spelling of 68160905 in words is "sixty-eight million, one hundred sixty thousand, nine hundred five".