66276101 has 2 divisors, whose sum is σ = 66276102. Its totient is φ = 66276100.

The previous prime is 66276097. The next prime is 66276143. The reversal of 66276101 is 10167266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50268100 + 16008001 = 7090^2 + 4001^2 .

It is a cyclic number.

It is not a de Polignac number, because 66276101 - 2² = 66276097 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 (66276191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33138050 + 33138051.

It is an arithmetic number, because the mean of its divisors is an integer number (33138051).

Almost surely, 2^66276101 is an apocalyptic number.

It is an amenable number.

66276101 is a deficient number, since it is larger than the sum of its proper divisors (1).

66276101 is an equidigital number, since it uses as much as digits as its factorization.

66276101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 66276101 is about 8141.0135118424. The cubic root of 66276101 is about 404.6867485792.

The spelling of 66276101 in words is "sixty-six million, two hundred seventy-six thousand, one hundred one".