66536426424505 has 8 divisors (see below), whose sum is σ = 80418126902400. Its totient is φ = 52846197677616.

The previous prime is 66536426424497. The next prime is 66536426424521. The reversal of 66536426424505 is 50542462463566.

66536426424505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 66536426424505 - 2³ = 66536426424497 is a prime.

It is a super-3 number, since 3×66536426424505³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66536426424505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47867931985 + ... + 47867933374.

It is an arithmetic number, because the mean of its divisors is an integer number (10052265862800).

Almost surely, 2^{66536426424505} is an apocalyptic number.

It is an amenable number.

66536426424505 is a deficient number, since it is larger than the sum of its proper divisors (13881700477895).

66536426424505 is a wasteful number, since it uses less digits than its factorization.

66536426424505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95735865503.

The product of its (nonzero) digits is 124416000, while the sum is 58.

The spelling of 66536426424505 in words is "sixty-six trillion, five hundred thirty-six billion, four hundred twenty-six million, four hundred twenty-four thousand, five hundred five".