110151001661 has 2 divisors, whose sum is σ = 110151001662. Its totient is φ = 110151001660.

The previous prime is 110151001637. The next prime is 110151001669. The reversal of 110151001661 is 166100151011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104720196025 + 5430805636 = 323605^2 + 73694^2 .

It is a cyclic number.

It is not a de Polignac number, because 110151001661 - 2²⁶ = 110083892797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110151001669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55075500830 + 55075500831.

It is an arithmetic number, because the mean of its divisors is an integer number (55075500831).

Almost surely, 2^110151001661 is an apocalyptic number.

It is an amenable number.

110151001661 is a deficient number, since it is larger than the sum of its proper divisors (1).

110151001661 is an equidigital number, since it uses as much as digits as its factorization.

110151001661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 110151001661 its reverse (166100151011), we get a palindrome (276251152672).

The spelling of 110151001661 in words is "one hundred ten billion, one hundred fifty-one million, one thousand, six hundred sixty-one".