66240326426882 has 8 divisors (see below), whose sum is σ = 99360525573900. Its totient is φ = 33120151235584.

The previous prime is 66240326426849. The next prime is 66240326426921. The reversal of 66240326426882 is 28862462304266.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66115421437321 + 124904989561 = 8131139^2 + 353419^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4839794 + ... + 12486162.

Almost surely, 2^{66240326426882} is an apocalyptic number.

66240326426882 is a deficient number, since it is larger than the sum of its proper divisors (33120199147018).

66240326426882 is a wasteful number, since it uses less digits than its factorization.

66240326426882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11977860.

The product of its (nonzero) digits is 63700992, while the sum is 59.

The spelling of 66240326426882 in words is "sixty-six trillion, two hundred forty billion, three hundred twenty-six million, four hundred twenty-six thousand, eight hundred eighty-two".