66088464426280 has 32 divisors (see below), whose sum is σ = 148700214491400. Its totient is φ = 26435177853696.

The previous prime is 66088464426263. The next prime is 66088464426289. The reversal of 66088464426280 is 8262446488066.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65311256445444 + 777207980836 = 8081538^2 + 881594^2 .

It is not an unprimeable number, because it can be changed into a prime (66088464426289) 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, 1296675 + ... + 11569714.

Almost surely, 2^{66088464426280} is an apocalyptic number.

It is an amenable number.

66088464426280 is an abundant number, since it is smaller than the sum of its proper divisors (82611750065120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66088464426280 is a wasteful number, since it uses less digits than its factorization.

66088464426280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12994813 (or 12994809 counting only the distinct ones).

The product of its (nonzero) digits is 169869312, while the sum is 64.

The spelling of 66088464426280 in words is "sixty-six trillion, eighty-eight billion, four hundred sixty-four million, four hundred twenty-six thousand, two hundred eighty".