68565611 has 4 divisors (see below), whose sum is σ = 69727800. Its totient is φ = 67403424.

The previous prime is 68565593. The next prime is 68565613. The reversal of 68565611 is 11656586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68565611 - 2¹⁴ = 68549227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68565613) 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 3 ways as a sum of consecutive naturals, for example, 581006 + ... + 581123.

It is an arithmetic number, because the mean of its divisors is an integer number (17431950).

Almost surely, 2^68565611 is an apocalyptic number.

68565611 is a deficient number, since it is larger than the sum of its proper divisors (1162189).

68565611 is a wasteful number, since it uses less digits than its factorization.

68565611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162188.

The product of its digits is 43200, while the sum is 38.

The square root of 68565611 is about 8280.4354354104. The cubic root of 68565611 is about 409.2940678034.

The spelling of 68565611 in words is "sixty-eight million, five hundred sixty-five thousand, six hundred eleven".