83466137669 has 2 divisors, whose sum is σ = 83466137670. Its totient is φ = 83466137668.

The previous prime is 83466137621. The next prime is 83466137681. The reversal of 83466137669 is 96673166438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83441832769 + 24304900 = 288863^2 + 4930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83466137669 is a prime.

It is a super-2 number, since 2×83466137669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83466137269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41733068834 + 41733068835.

It is an arithmetic number, because the mean of its divisors is an integer number (41733068835).

Almost surely, 2^83466137669 is an apocalyptic number.

It is an amenable number.

83466137669 is a deficient number, since it is larger than the sum of its proper divisors (1).

83466137669 is an equidigital number, since it uses as much as digits as its factorization.

83466137669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 59.

The spelling of 83466137669 in words is "eighty-three billion, four hundred sixty-six million, one hundred thirty-seven thousand, six hundred sixty-nine".