132661644660469 has 2 divisors, whose sum is σ = 132661644660470. Its totient is φ = 132661644660468.

The previous prime is 132661644660437. The next prime is 132661644660533. The reversal of 132661644660469 is 964066446166231.

It is an a-pointer prime, because the next prime (132661644660533) can be obtained adding 132661644660469 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102210340867569 + 30451303792900 = 10109913^2 + 5518270^2 .

It is a cyclic number.

It is not a de Polignac number, because 132661644660469 - 2⁵ = 132661644660437 is a prime.

It is a super-2 number, since 2×132661644660469² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 132661644660469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132661644660869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66330822330234 + 66330822330235.

It is an arithmetic number, because the mean of its divisors is an integer number (66330822330235).

Almost surely, 2^{132661644660469} is an apocalyptic number.

It is an amenable number.

132661644660469 is a deficient number, since it is larger than the sum of its proper divisors (1).

132661644660469 is an equidigital number, since it uses as much as digits as its factorization.

132661644660469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161243136, while the sum is 64.

The spelling of 132661644660469 in words is "one hundred thirty-two trillion, six hundred sixty-one billion, six hundred forty-four million, six hundred sixty thousand, four hundred sixty-nine".