66208152265 has 8 divisors (see below), whose sum is σ = 79674855048. Its totient is φ = 52816473600.

The previous prime is 66208152239. The next prime is 66208152271. The reversal of 66208152265 is 56225180266.

66208152265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14530132681 + 51678019584 = 120541^2 + 227328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66208152265 - 2⁵ = 66208152233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18754086 + ... + 18757615.

It is an arithmetic number, because the mean of its divisors is an integer number (9959356881).

Almost surely, 2^66208152265 is an apocalyptic number.

It is an amenable number.

66208152265 is a deficient number, since it is larger than the sum of its proper divisors (13466702783).

66208152265 is a wasteful number, since it uses less digits than its factorization.

66208152265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37512059.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 66208152265 in words is "sixty-six billion, two hundred eight million, one hundred fifty-two thousand, two hundred sixty-five".