67111072137 has 6 divisors (see below), whose sum is σ = 96938215322. Its totient is φ = 44740714752.

The previous prime is 67111072117. The next prime is 67111072163. The reversal of 67111072137 is 73127011176.

It can be written as a sum of positive squares in only one way, i.e., 59592621456 + 7518450681 = 244116^2 + 86709^2 .

It is not a de Polignac number, because 67111072137 - 2¹⁹ = 67110547849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67111072117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3728392888 + ... + 3728392905.

Almost surely, 2^67111072137 is an apocalyptic number.

It is an amenable number.

67111072137 is a deficient number, since it is larger than the sum of its proper divisors (29827143185).

67111072137 is a wasteful number, since it uses less digits than its factorization.

67111072137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456785799 (or 7456785796 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The spelling of 67111072137 in words is "sixty-seven billion, one hundred eleven million, seventy-two thousand, one hundred thirty-seven".