68164694 has 16 divisors (see below), whose sum is σ = 111919920. Its totient is φ = 30944160.

The previous prime is 68164667. The next prime is 68164697. The reversal of 68164694 is 49646186.

It is a super-2 number, since 2×68164694² = 9292851016227272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68164697) 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, 19904 + ... + 23075.

It is an arithmetic number, because the mean of its divisors is an integer number (6994995).

Almost surely, 2^68164694 is an apocalyptic number.

68164694 is a deficient number, since it is larger than the sum of its proper divisors (43755226).

68164694 is a wasteful number, since it uses less digits than its factorization.

68164694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43055.

The product of its digits is 248832, while the sum is 44.

The square root of 68164694 is about 8256.1912526297. The cubic root of 68164694 is about 408.4947661388.

The spelling of 68164694 in words is "sixty-eight million, one hundred sixty-four thousand, six hundred ninety-four".