66264034132445 has 8 divisors (see below), whose sum is σ = 80606112753336. Its totient is φ = 52285046109696.

The previous prime is 66264034132441. The next prime is 66264034132451. The reversal of 66264034132445 is 54423143046266.

It can be written as a sum of positive squares in 4 ways, for example, as 26736696928516 + 39527337203929 = 5170754^2 + 6287077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66264034132445 - 2² = 66264034132441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66264034132393 and 66264034132402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66264034132441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90772649132 + ... + 90772649861.

It is an arithmetic number, because the mean of its divisors is an integer number (10075764094167).

Almost surely, 2^{66264034132445} is an apocalyptic number.

It is an amenable number.

66264034132445 is a deficient number, since it is larger than the sum of its proper divisors (14342078620891).

66264034132445 is a wasteful number, since it uses less digits than its factorization.

66264034132445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181545299071.

The product of its (nonzero) digits is 9953280, while the sum is 50.

The spelling of 66264034132445 in words is "sixty-six trillion, two hundred sixty-four billion, thirty-four million, one hundred thirty-two thousand, four hundred forty-five".