66098101 has 2 divisors, whose sum is σ = 66098102. Its totient is φ = 66098100.

The previous prime is 66098083. The next prime is 66098111. The reversal of 66098101 is 10189066.

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., 41088100 + 25010001 = 6410^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 66098101 - 2⁷ = 66097973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66098111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33049050 + 33049051.

It is an arithmetic number, because the mean of its divisors is an integer number (33049051).

Almost surely, 2^66098101 is an apocalyptic number.

It is an amenable number.

66098101 is a deficient number, since it is larger than the sum of its proper divisors (1).

66098101 is an equidigital number, since it uses as much as digits as its factorization.

66098101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 66098101 is about 8130.0738619031. The cubic root of 66098101 is about 404.3241300544.

The spelling of 66098101 in words is "sixty-six million, ninety-eight thousand, one hundred one".