66010556652 has 24 divisors (see below), whose sum is σ = 154043358000. Its totient is φ = 22000843776.

The previous prime is 66010556641. The next prime is 66010556671. The reversal of 66010556652 is 25665501066.

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, 230277 + ... + 430172.

It is an arithmetic number, because the mean of its divisors is an integer number (6418473250).

Almost surely, 2^66010556652 is an apocalyptic number.

It is an amenable number.

66010556652 is an abundant number, since it is smaller than the sum of its proper divisors (88032801348).

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

66010556652 is a wasteful number, since it uses less digits than its factorization.

66010556652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668785 (or 668783 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 66010556652 in words is "sixty-six billion, ten million, five hundred fifty-six thousand, six hundred fifty-two".