66588106085331 has 16 divisors (see below), whose sum is σ = 88811132411040. Its totient is φ = 44378576167680.

The previous prime is 66588106085323. The next prime is 66588106085351. The reversal of 66588106085331 is 13358060188566.

It is not a de Polignac number, because 66588106085331 - 2³ = 66588106085323 is a prime.

It is a super-2 number, since 2×66588106085331² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66588106085351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336182481 + ... + 336380493.

It is an arithmetic number, because the mean of its divisors is an integer number (5550695775690).

Almost surely, 2^{66588106085331} is an apocalyptic number.

66588106085331 is a deficient number, since it is larger than the sum of its proper divisors (22223026325709).

66588106085331 is a wasteful number, since it uses less digits than its factorization.

66588106085331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231526.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 66588106085331 in words is "sixty-six trillion, five hundred eighty-eight billion, one hundred six million, eighty-five thousand, three hundred thirty-one".