66546546640151 has 2 divisors, whose sum is σ = 66546546640152. Its totient is φ = 66546546640150.

The previous prime is 66546546640109. The next prime is 66546546640153. The reversal of 66546546640151 is 15104664564566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66546546640151 - 2¹⁸ = 66546546378007 is a prime.

It is a super-4 number, since 4×66546546640151⁴ (a number of 56 digits) contains 4444 as substring.

Together with 66546546640153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66546546640153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33273273320075 + 33273273320076.

It is an arithmetic number, because the mean of its divisors is an integer number (33273273320076).

Almost surely, 2^{66546546640151} is an apocalyptic number.

66546546640151 is a deficient number, since it is larger than the sum of its proper divisors (1).

66546546640151 is an equidigital number, since it uses as much as digits as its factorization.

66546546640151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208000, while the sum is 59.

The spelling of 66546546640151 in words is "sixty-six trillion, five hundred forty-six billion, five hundred forty-six million, six hundred forty thousand, one hundred fifty-one".