66476101 has 2 divisors, whose sum is σ = 66476102. Its totient is φ = 66476100.

The previous prime is 66476083. The next prime is 66476107. The reversal of 66476101 is 10167466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62964225 + 3511876 = 7935^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 66476101 - 2⁷ = 66475973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66476107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33238050 + 33238051.

It is an arithmetic number, because the mean of its divisors is an integer number (33238051).

Almost surely, 2^66476101 is an apocalyptic number.

It is an amenable number.

66476101 is a deficient number, since it is larger than the sum of its proper divisors (1).

66476101 is an equidigital number, since it uses as much as digits as its factorization.

66476101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 66476101 is about 8153.2877417641. The cubic root of 66476101 is about 405.0934113651.

The spelling of 66476101 in words is "sixty-six million, four hundred seventy-six thousand, one hundred one".