68656105 has 12 divisors (see below), whose sum is σ = 95838660. Its totient is φ = 47078304.

The previous prime is 68656097. The next prime is 68656111. The reversal of 68656105 is 50165686.

It can be written as a sum of positive squares in 2 ways, for example, as 49392784 + 19263321 = 7028^2 + 4389^2 .

It is not a de Polignac number, because 68656105 - 2³ = 68656097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139870 + ... + 140359.

It is an arithmetic number, because the mean of its divisors is an integer number (7986555).

Almost surely, 2^68656105 is an apocalyptic number.

It is an amenable number.

68656105 is a deficient number, since it is larger than the sum of its proper divisors (27182555).

68656105 is a wasteful number, since it uses less digits than its factorization.

68656105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280248 (or 280241 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68656105 is about 8285.8979597869. The cubic root of 68656105 is about 409.4740529497.

The spelling of 68656105 in words is "sixty-eight million, six hundred fifty-six thousand, one hundred five".