20110099169 has 2 divisors, whose sum is σ = 20110099170. Its totient is φ = 20110099168.

The previous prime is 20110099129. The next prime is 20110099181. The reversal of 20110099169 is 96199001102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17131668544 + 2978430625 = 130888^2 + 54575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110099169 is a prime.

It is a super-3 number, since 3×20110099169³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20110099129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055049584 + 10055049585.

It is an arithmetic number, because the mean of its divisors is an integer number (10055049585).

Almost surely, 2^20110099169 is an apocalyptic number.

It is an amenable number.

20110099169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110099169 is an equidigital number, since it uses as much as digits as its factorization.

20110099169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 20110099169 in words is "twenty billion, one hundred ten million, ninety-nine thousand, one hundred sixty-nine".