66101141 has 2 divisors, whose sum is σ = 66101142. Its totient is φ = 66101140.

The previous prime is 66101131. The next prime is 66101201. The reversal of 66101141 is 14110166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 30758116 = 5945^2 + 5546^2 .

It is a cyclic number.

It is not a de Polignac number, because 66101141 - 2¹⁰ = 66100117 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (66101131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33050570 + 33050571.

It is an arithmetic number, because the mean of its divisors is an integer number (33050571).

Almost surely, 2^66101141 is an apocalyptic number.

It is an amenable number.

66101141 is a deficient number, since it is larger than the sum of its proper divisors (1).

66101141 is an equidigital number, since it uses as much as digits as its factorization.

66101141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 66101141 is about 8130.2608199245. The cubic root of 66101141 is about 404.3303285507.

It can be divided in two parts, 6 and 6101141, that multiplied together give a triangular number (36606846 = T₈₅₅₆).

The spelling of 66101141 in words is "sixty-six million, one hundred one thousand, one hundred forty-one".