83668560290641 has 2 divisors, whose sum is σ = 83668560290642. Its totient is φ = 83668560290640.

The previous prime is 83668560290597. The next prime is 83668560290747. The reversal of 83668560290641 is 14609206586638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67102064812225 + 16566495478416 = 8191585^2 + 4070196^2 .

It is a cyclic number.

It is not a de Polignac number, because 83668560290641 - 2³³ = 83659970356049 is a prime.

It is a super-2 number, since 2×83668560290641² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83668560260641) 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, 41834280145320 + 41834280145321.

It is an arithmetic number, because the mean of its divisors is an integer number (41834280145321).

Almost surely, 2^{83668560290641} is an apocalyptic number.

It is an amenable number.

83668560290641 is a deficient number, since it is larger than the sum of its proper divisors (1).

83668560290641 is an equidigital number, since it uses as much as digits as its factorization.

83668560290641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 83668560290641 in words is "eighty-three trillion, six hundred sixty-eight billion, five hundred sixty million, two hundred ninety thousand, six hundred forty-one".