68623161 has 8 divisors (see below), whose sum is σ = 91583520. Its totient is φ = 45705792.

The previous prime is 68623157. The next prime is 68623199. The reversal of 68623161 is 16132686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68623161 - 2² = 68623157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68623661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6816 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (11447940).

Almost surely, 2^68623161 is an apocalyptic number.

It is an amenable number.

68623161 is a deficient number, since it is larger than the sum of its proper divisors (22960359).

68623161 is a wasteful number, since it uses less digits than its factorization.

68623161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21495.

The product of its digits is 10368, while the sum is 33.

The square root of 68623161 is about 8283.9097653222. The cubic root of 68623161 is about 409.4085483529.

The spelling of 68623161 in words is "sixty-eight million, six hundred twenty-three thousand, one hundred sixty-one".