66265195008 has 80 divisors (see below), whose sum is σ = 176712037920. Its totient is φ = 22066200576.

The previous prime is 66265194997. The next prime is 66265195037. The reversal of 66265195008 is 80059156266.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544016 + ... + 1586352.

It is an arithmetic number, because the mean of its divisors is an integer number (2208900474).

Almost surely, 2^66265195008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66265195008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88356018960).

66265195008 is an abundant number, since it is smaller than the sum of its proper divisors (110446842912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66265195008 is a wasteful number, since it uses less digits than its factorization.

66265195008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43377 (or 43361 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 66265195008 in words is "sixty-six billion, two hundred sixty-five million, one hundred ninety-five thousand, eight".