67117038061 has 2 divisors, whose sum is σ = 67117038062. Its totient is φ = 67117038060.

The previous prime is 67117038059. The next prime is 67117038101. The reversal of 67117038061 is 16083071176.

It is an a-pointer prime, because the next prime (67117038101) can be obtained adding 67117038061 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61315169161 + 5801868900 = 247619^2 + 76170^2 .

It is a cyclic number.

It is not a de Polignac number, because 67117038061 - 2¹ = 67117038059 is a prime.

Together with 67117038059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67117032061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33558519030 + 33558519031.

It is an arithmetic number, because the mean of its divisors is an integer number (33558519031).

Almost surely, 2^67117038061 is an apocalyptic number.

It is an amenable number.

67117038061 is a deficient number, since it is larger than the sum of its proper divisors (1).

67117038061 is an equidigital number, since it uses as much as digits as its factorization.

67117038061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 67117038061 in words is "sixty-seven billion, one hundred seventeen million, thirty-eight thousand, sixty-one".