66200017070055 has 64 divisors (see below), whose sum is σ = 115813128485376. Its totient is φ = 32023717440000.

The previous prime is 66200017069981. The next prime is 66200017070071. The reversal of 66200017070055 is 55007071000266.

66200017070055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66200017070055 - 2¹³ = 66200017061863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66200017069995 and 66200017070022.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 141660292 + ... + 142126838.

It is an arithmetic number, because the mean of its divisors is an integer number (1809580132584).

Almost surely, 2^{66200017070055} is an apocalyptic number.

66200017070055 is a deficient number, since it is larger than the sum of its proper divisors (49613111415321).

66200017070055 is a wasteful number, since it uses less digits than its factorization.

66200017070055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468528.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 66200017070055 in words is "sixty-six trillion, two hundred billion, seventeen million, seventy thousand, fifty-five".