106180168921 has 2 divisors, whose sum is σ = 106180168922. Its totient is φ = 106180168920.

The previous prime is 106180168883. The next prime is 106180168943. The reversal of 106180168921 is 129861081601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78044803225 + 28135365696 = 279365^2 + 167736^2 .

It is a cyclic number.

It is not a de Polignac number, because 106180168921 - 2²³ = 106171780313 is a prime.

It is a super-2 number, since 2×106180168921² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106180168951) 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, 53090084460 + 53090084461.

It is an arithmetic number, because the mean of its divisors is an integer number (53090084461).

Almost surely, 2^106180168921 is an apocalyptic number.

It is an amenable number.

106180168921 is a deficient number, since it is larger than the sum of its proper divisors (1).

106180168921 is an equidigital number, since it uses as much as digits as its factorization.

106180168921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 106180168921 in words is "one hundred six billion, one hundred eighty million, one hundred sixty-eight thousand, nine hundred twenty-one".