66048774185366 has 64 divisors (see below), whose sum is σ = 120876852096000. Its totient is φ = 26436376995840.

The previous prime is 66048774185321. The next prime is 66048774185371. The reversal of 66048774185366 is 66358147784066.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a self number, because there is not a number n which added to its sum of digits gives 66048774185366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188855270 + ... + 189204678.

It is an arithmetic number, because the mean of its divisors is an integer number (1888700814000).

Almost surely, 2^{66048774185366} is an apocalyptic number.

66048774185366 is a deficient number, since it is larger than the sum of its proper divisors (54828077910634).

66048774185366 is a wasteful number, since it uses less digits than its factorization.

66048774185366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359517.

The product of its (nonzero) digits is 975421440, while the sum is 71.

The spelling of 66048774185366 in words is "sixty-six trillion, forty-eight billion, seven hundred seventy-four million, one hundred eighty-five thousand, three hundred sixty-six".