166737703829 has 2 divisors, whose sum is σ = 166737703830. Its totient is φ = 166737703828.

The previous prime is 166737703733. The next prime is 166737703849. The reversal of 166737703829 is 928307737661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98861822929 + 67875880900 = 314423^2 + 260530^2 .

It is an emirp because it is prime and its reverse (928307737661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166737703829 - 2³⁶ = 98018227093 is a prime.

It is a super-2 number, since 2×166737703829² (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 (166737703849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83368851914 + 83368851915.

It is an arithmetic number, because the mean of its divisors is an integer number (83368851915).

Almost surely, 2^166737703829 is an apocalyptic number.

It is an amenable number.

166737703829 is a deficient number, since it is larger than the sum of its proper divisors (1).

166737703829 is an equidigital number, since it uses as much as digits as its factorization.

166737703829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 166737703829 in words is "one hundred sixty-six billion, seven hundred thirty-seven million, seven hundred three thousand, eight hundred twenty-nine".