66383985097037 has 2 divisors, whose sum is σ = 66383985097038. Its totient is φ = 66383985097036.

The previous prime is 66383985097033. The next prime is 66383985097043. The reversal of 66383985097037 is 73079058938366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65725702765321 + 658282331716 = 8107139^2 + 811346^2 .

It is a cyclic number.

It is not a de Polignac number, because 66383985097037 - 2² = 66383985097033 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66383985097033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33191992548518 + 33191992548519.

It is an arithmetic number, because the mean of its divisors is an integer number (33191992548519).

Almost surely, 2^{66383985097037} is an apocalyptic number.

It is an amenable number.

66383985097037 is a deficient number, since it is larger than the sum of its proper divisors (1).

66383985097037 is an equidigital number, since it uses as much as digits as its factorization.

66383985097037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234517760, while the sum is 74.

The spelling of 66383985097037 in words is "sixty-six trillion, three hundred eighty-three billion, nine hundred eighty-five million, ninety-seven thousand, thirty-seven".