109931666133637 has 2 divisors, whose sum is σ = 109931666133638. Its totient is φ = 109931666133636.

The previous prime is 109931666133629. The next prime is 109931666133697. The reversal of 109931666133637 is 736331666139901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89943202177921 + 19988463955716 = 9483839^2 + 4470846^2 .

It is a cyclic number.

It is not a de Polignac number, because 109931666133637 - 2³ = 109931666133629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109931666133697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54965833066818 + 54965833066819.

It is an arithmetic number, because the mean of its divisors is an integer number (54965833066819).

Almost surely, 2^{109931666133637} is an apocalyptic number.

It is an amenable number.

109931666133637 is a deficient number, since it is larger than the sum of its proper divisors (1).

109931666133637 is an equidigital number, since it uses as much as digits as its factorization.

109931666133637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59521392, while the sum is 64.

The spelling of 109931666133637 in words is "one hundred nine trillion, nine hundred thirty-one billion, six hundred sixty-six million, one hundred thirty-three thousand, six hundred thirty-seven".