68158805 has 16 divisors (see below), whose sum is σ = 96090624. Its totient is φ = 45756480.

The previous prime is 68158759. The next prime is 68158807. The reversal of 68158805 is 50885186.

It is not a de Polignac number, because 68158805 - 2¹⁶ = 68093269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68158807) 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, 46949 + ... + 48378.

It is an arithmetic number, because the mean of its divisors is an integer number (6005664).

Almost surely, 2^68158805 is an apocalyptic number.

68158805 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68158805 is a deficient number, since it is larger than the sum of its proper divisors (27931819).

68158805 is a wasteful number, since it uses less digits than its factorization.

68158805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95356.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 68158805 is about 8255.8346034789. The cubic root of 68158805 is about 408.4830020089.

The spelling of 68158805 in words is "sixty-eight million, one hundred fifty-eight thousand, eight hundred five".