68661169 has 8 divisors (see below), whose sum is σ = 69854400. Its totient is φ = 67476816.

The previous prime is 68661149. The next prime is 68661199. The reversal of 68661169 is 96116686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68661169 - 2¹³ = 68652977 is a prime.

It is a super-2 number, since 2×68661169² = 9428712256893122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68661119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14439 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (8731800).

Almost surely, 2^68661169 is an apocalyptic number.

It is an amenable number.

68661169 is a deficient number, since it is larger than the sum of its proper divisors (1193231).

68661169 is a wasteful number, since it uses less digits than its factorization.

68661169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439.

The product of its digits is 93312, while the sum is 43.

The square root of 68661169 is about 8286.2035335852. The cubic root of 68661169 is about 409.4841201565.

The spelling of 68661169 in words is "sixty-eight million, six hundred sixty-one thousand, one hundred sixty-nine".