100320166637 has 2 divisors, whose sum is σ = 100320166638. Its totient is φ = 100320166636.

The previous prime is 100320166567. The next prime is 100320166691. The reversal of 100320166637 is 736661023001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98829125641 + 1491040996 = 314371^2 + 38614^2 .

It is a cyclic number.

It is not a de Polignac number, because 100320166637 - 2⁸ = 100320166381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100320166597 and 100320166606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100320160637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50160083318 + 50160083319.

It is an arithmetic number, because the mean of its divisors is an integer number (50160083319).

Almost surely, 2^100320166637 is an apocalyptic number.

It is an amenable number.

100320166637 is a deficient number, since it is larger than the sum of its proper divisors (1).

100320166637 is an equidigital number, since it uses as much as digits as its factorization.

100320166637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

Adding to 100320166637 its reverse (736661023001), we get a palindrome (836981189638).

The spelling of 100320166637 in words is "one hundred billion, three hundred twenty million, one hundred sixty-six thousand, six hundred thirty-seven".