68111355 has 32 divisors (see below), whose sum is σ = 120105216. Its totient is φ = 32747904.

The previous prime is 68111321. The next prime is 68111357. The reversal of 68111355 is 55311186.

It is not a de Polignac number, because 68111355 - 2¹⁵ = 68078587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68111357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4324 + ... + 12446.

It is an arithmetic number, because the mean of its divisors is an integer number (3753288).

Almost surely, 2^68111355 is an apocalyptic number.

68111355 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68111355 is a deficient number, since it is larger than the sum of its proper divisors (51993861).

68111355 is a wasteful number, since it uses less digits than its factorization.

68111355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187.

The product of its digits is 3600, while the sum is 30.

The square root of 68111355 is about 8252.9603779492. The cubic root of 68111355 is about 408.3881890300.

The spelling of 68111355 in words is "sixty-eight million, one hundred eleven thousand, three hundred fifty-five".