66052646506613 has 32 divisors (see below), whose sum is σ = 71762325258624. Its totient is φ = 60433944480000.

The previous prime is 66052646506603. The next prime is 66052646506621. The reversal of 66052646506613 is 31660564625066.

It is not a de Polignac number, because 66052646506613 - 2⁶ = 66052646506549 is a prime.

It is a super-2 number, since 2×66052646506613² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66052646506603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517715718 + ... + 5517727688.

It is an arithmetic number, because the mean of its divisors is an integer number (2242572664332).

Almost surely, 2^{66052646506613} is an apocalyptic number.

It is an amenable number.

66052646506613 is a deficient number, since it is larger than the sum of its proper divisors (5709678752011).

66052646506613 is a wasteful number, since it uses less digits than its factorization.

66052646506613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15717.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 66052646506613 in words is "sixty-six trillion, fifty-two billion, six hundred forty-six million, five hundred six thousand, six hundred thirteen".