166357753741 has 2 divisors, whose sum is σ = 166357753742. Its totient is φ = 166357753740.

The previous prime is 166357753643. The next prime is 166357753763. The reversal of 166357753741 is 147357753661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123081688900 + 43276064841 = 350830^2 + 208029^2 .

It is a cyclic number.

It is not a de Polignac number, because 166357753741 - 2³¹ = 164210270093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166357751741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83178876870 + 83178876871.

It is an arithmetic number, because the mean of its divisors is an integer number (83178876871).

Almost surely, 2^166357753741 is an apocalyptic number.

It is an amenable number.

166357753741 is a deficient number, since it is larger than the sum of its proper divisors (1).

166357753741 is an equidigital number, since it uses as much as digits as its factorization.

166357753741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11113200, while the sum is 55.

The spelling of 166357753741 in words is "one hundred sixty-six billion, three hundred fifty-seven million, seven hundred fifty-three thousand, seven hundred forty-one".