68366137 has 16 divisors (see below), whose sum is σ = 81164160. Its totient is φ = 56343168.

The previous prime is 68366119. The next prime is 68366171. The reversal of 68366137 is 73166386.

It is a de Polignac number, because none of the positive numbers 2^k-68366137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68366137.

It is not an unprimeable number, because it can be changed into a prime (68366107) 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 15 ways as a sum of consecutive naturals, for example, 61773 + ... + 62869.

It is an arithmetic number, because the mean of its divisors is an integer number (5072760).

Almost surely, 2^68366137 is an apocalyptic number.

It is an amenable number.

68366137 is a deficient number, since it is larger than the sum of its proper divisors (12798023).

68366137 is a wasteful number, since it uses less digits than its factorization.

68366137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its digits is 108864, while the sum is 40.

The square root of 68366137 is about 8268.3817642874. The cubic root of 68366137 is about 408.8967703560.

The spelling of 68366137 in words is "sixty-eight million, three hundred sixty-six thousand, one hundred thirty-seven".