132666522660649 has 2 divisors, whose sum is σ = 132666522660650. Its totient is φ = 132666522660648.

The previous prime is 132666522660613. The next prime is 132666522660667. The reversal of 132666522660649 is 946066225666231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92444379040000 + 40222143620649 = 9614800^2 + 6342093^2 .

It is a cyclic number.

It is not a de Polignac number, because 132666522660649 - 2²¹ = 132666520563497 is a prime.

It is not a weakly prime, because it can be changed into another prime (132666522660149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66333261330324 + 66333261330325.

It is an arithmetic number, because the mean of its divisors is an integer number (66333261330325).

Almost surely, 2^{132666522660649} is an apocalyptic number.

It is an amenable number.

132666522660649 is a deficient number, since it is larger than the sum of its proper divisors (1).

132666522660649 is an equidigital number, since it uses as much as digits as its factorization.

132666522660649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201553920, while the sum is 64.

The spelling of 132666522660649 in words is "one hundred thirty-two trillion, six hundred sixty-six billion, five hundred twenty-two million, six hundred sixty thousand, six hundred forty-nine".