68611755 has 16 divisors (see below), whose sum is σ = 115557120. Its totient is φ = 34666848.

The previous prime is 68611729. The next prime is 68611757. The reversal of 68611755 is 55711686.

It is not a de Polignac number, because 68611755 - 2²⁴ = 51834539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68611757) 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, 120087 + ... + 120656.

It is an arithmetic number, because the mean of its divisors is an integer number (7222320).

Almost surely, 2^68611755 is an apocalyptic number.

68611755 is a deficient number, since it is larger than the sum of its proper divisors (46945365).

68611755 is a wasteful number, since it uses less digits than its factorization.

68611755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240770.

The product of its digits is 50400, while the sum is 39.

The square root of 68611755 is about 8283.2212936755. The cubic root of 68611755 is about 409.3858642106.

The spelling of 68611755 in words is "sixty-eight million, six hundred eleven thousand, seven hundred fifty-five".