66300131 has 2 divisors, whose sum is σ = 66300132. Its totient is φ = 66300130.

The previous prime is 66300079. The next prime is 66300149. The reversal of 66300131 is 13100366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66300131 - 2⁶ = 66300067 is a prime.

It is a super-2 number, since 2×66300131² = 8791414741234322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66300181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33150065 + 33150066.

It is an arithmetic number, because the mean of its divisors is an integer number (33150066).

Almost surely, 2^66300131 is an apocalyptic number.

66300131 is a deficient number, since it is larger than the sum of its proper divisors (1).

66300131 is an equidigital number, since it uses as much as digits as its factorization.

66300131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 66300131 is about 8142.4892385560. The cubic root of 66300131 is about 404.7356523185.

Adding to 66300131 its reverse (13100366), we get a palindrome (79400497).

The spelling of 66300131 in words is "sixty-six million, three hundred thousand, one hundred thirty-one".