66602523948 has 24 divisors (see below), whose sum is σ = 155488913328. Its totient is φ = 22188980736.

The previous prime is 66602523937. The next prime is 66602524007. The reversal of 66602523948 is 84932520666.

It is a self number, because there is not a number n which added to its sum of digits gives 66602523948.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1459161 + ... + 1504112.

It is an arithmetic number, because the mean of its divisors is an integer number (6478704722).

Almost surely, 2^66602523948 is an apocalyptic number.

It is an amenable number.

66602523948 is an abundant number, since it is smaller than the sum of its proper divisors (88886389380).

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

66602523948 is a wasteful number, since it uses less digits than its factorization.

66602523948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965153 (or 2965151 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 66602523948 in words is "sixty-six billion, six hundred two million, five hundred twenty-three thousand, nine hundred forty-eight".