66248358605 has 32 divisors (see below), whose sum is σ = 93477767040. Its totient is φ = 44435623680.

The previous prime is 66248358601. The next prime is 66248358619. The reversal of 66248358605 is 50685384266.

It is not a de Polignac number, because 66248358605 - 2² = 66248358601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66248358601) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 791711 + ... + 871379.

It is an arithmetic number, because the mean of its divisors is an integer number (2921180220).

Almost surely, 2^66248358605 is an apocalyptic number.

66248358605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66248358605 is a deficient number, since it is larger than the sum of its proper divisors (27229408435).

66248358605 is a wasteful number, since it uses less digits than its factorization.

66248358605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80861.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 66248358605 in words is "sixty-six billion, two hundred forty-eight million, three hundred fifty-eight thousand, six hundred five".