68356169 has 16 divisors (see below), whose sum is σ = 79349760. Its totient is φ = 57678480.

The previous prime is 68356163. The next prime is 68356181. The reversal of 68356169 is 96165386.

It is a cyclic number.

It is not a de Polignac number, because 68356169 - 2⁴ = 68356153 is a prime.

It is a super-2 number, since 2×68356169² = 9345131680713122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68356163) 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, 158384 + ... + 158814.

It is an arithmetic number, because the mean of its divisors is an integer number (4959360).

Almost surely, 2^68356169 is an apocalyptic number.

It is an amenable number.

68356169 is a deficient number, since it is larger than the sum of its proper divisors (10993591).

68356169 is a wasteful number, since it uses less digits than its factorization.

68356169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 233280, while the sum is 44.

The square root of 68356169 is about 8267.7789641475. The cubic root of 68356169 is about 408.8768965739.

The spelling of 68356169 in words is "sixty-eight million, three hundred fifty-six thousand, one hundred sixty-nine".