66150500265 has 24 divisors (see below), whose sum is σ = 114764906880. Its totient is φ = 35248254624.

The previous prime is 66150500243. The next prime is 66150500267. The reversal of 66150500265 is 56200505166.

It is a happy number.

It is not a de Polignac number, because 66150500265 - 2⁶ = 66150500201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66150500267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616735 + ... + 716004.

It is an arithmetic number, because the mean of its divisors is an integer number (4781871120).

Almost surely, 2^66150500265 is an apocalyptic number.

It is an amenable number.

66150500265 is a deficient number, since it is larger than the sum of its proper divisors (48614406615).

66150500265 is a wasteful number, since it uses less digits than its factorization.

66150500265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333853 (or 1333850 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 66150500265 in words is "sixty-six billion, one hundred fifty million, five hundred thousand, two hundred sixty-five".