66804152570 has 32 divisors (see below), whose sum is σ = 126590143680. Its totient is φ = 25312487040.

The previous prime is 66804152563. The next prime is 66804152581. The reversal of 66804152570 is 7525140866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823590 + ... + 2847150.

It is an arithmetic number, because the mean of its divisors is an integer number (3955941990).

Almost surely, 2^66804152570 is an apocalyptic number.

66804152570 is a deficient number, since it is larger than the sum of its proper divisors (59785991110).

66804152570 is a wasteful number, since it uses less digits than its factorization.

66804152570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38510.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 66804152570 in words is "sixty-six billion, eight hundred four million, one hundred fifty-two thousand, five hundred seventy".