65166055583 has 2 divisors, whose sum is σ = 65166055584. Its totient is φ = 65166055582.

The previous prime is 65166055547. The next prime is 65166055609. The reversal of 65166055583 is 38555066156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65166055583 - 2¹² = 65166051487 is a prime.

It is a super-2 number, since 2×65166055583² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65166055523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32583027791 + 32583027792.

It is an arithmetic number, because the mean of its divisors is an integer number (32583027792).

Almost surely, 2^65166055583 is an apocalyptic number.

65166055583 is a deficient number, since it is larger than the sum of its proper divisors (1).

65166055583 is an equidigital number, since it uses as much as digits as its factorization.

65166055583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 65166055583 in words is "sixty-five billion, one hundred sixty-six million, fifty-five thousand, five hundred eighty-three".