66037570552 has 32 divisors (see below), whose sum is σ = 131332291200. Its totient is φ = 31042159200.

The previous prime is 66037570523. The next prime is 66037570567. The reversal of 66037570552 is 25507573066.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 1638324 + ... + 1678147.

It is an arithmetic number, because the mean of its divisors is an integer number (4104134100).

Almost surely, 2^66037570552 is an apocalyptic number.

It is an amenable number.

66037570552 is a deficient number, since it is larger than the sum of its proper divisors (65294720648).

66037570552 is a wasteful number, since it uses less digits than its factorization.

66037570552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316627 (or 3316623 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 46.

The spelling of 66037570552 in words is "sixty-six billion, thirty-seven million, five hundred seventy thousand, five hundred fifty-two".