66888090486267 has 16 divisors (see below), whose sum is σ = 93062274133248. Its totient is φ = 42653007874400.

The previous prime is 66888090486263. The next prime is 66888090486377. The reversal of 66888090486267 is 76268409088866.

It is a cyclic number.

It is not a de Polignac number, because 66888090486267 - 2² = 66888090486263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66888090486192 and 66888090486201.

It is not an unprimeable number, because it can be changed into a prime (66888090486263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8364973 + ... + 14274065.

It is an arithmetic number, because the mean of its divisors is an integer number (5816392133328).

Almost surely, 2^{66888090486267} is an apocalyptic number.

66888090486267 is a deficient number, since it is larger than the sum of its proper divisors (26174183646981).

66888090486267 is a wasteful number, since it uses less digits than its factorization.

66888090486267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073170.

The product of its (nonzero) digits is 2675441664, while the sum is 78.

The spelling of 66888090486267 in words is "sixty-six trillion, eight hundred eighty-eight billion, ninety million, four hundred eighty-six thousand, two hundred sixty-seven".