67116707091 has 12 divisors (see below), whose sum is σ = 110795834032. Its totient is φ = 38352404016.

The previous prime is 67116707071. The next prime is 67116707101. The reversal of 67116707091 is 19070761176.

It is not a de Polignac number, because 67116707091 - 2⁵ = 67116707059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67116707071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532672216 + ... + 532672341.

Almost surely, 2^67116707091 is an apocalyptic number.

67116707091 is a deficient number, since it is larger than the sum of its proper divisors (43679126941).

67116707091 is a wasteful number, since it uses less digits than its factorization.

67116707091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065344570 (or 1065344567 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The spelling of 67116707091 in words is "sixty-seven billion, one hundred sixteen million, seven hundred seven thousand, ninety-one".