66148192893200 has 120 divisors (see below), whose sum is σ = 174012895408320. Its totient is φ = 23964468236800.

The previous prime is 66148192893193. The next prime is 66148192893217. The reversal of 66148192893200 is 239829184166.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66148192893200.

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 23 ways as a sum of consecutive naturals, for example, 26760044 + ... + 29127243.

It is an arithmetic number, because the mean of its divisors is an integer number (1450107461736).

Almost surely, 2^{66148192893200} is an apocalyptic number.

It is an amenable number.

66148192893200 is an abundant number, since it is smaller than the sum of its proper divisors (107864702515120).

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

66148192893200 is a wasteful number, since it uses less digits than its factorization.

66148192893200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55887585 (or 55887574 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 66148192893200 in words is "sixty-six trillion, one hundred forty-eight billion, one hundred ninety-two million, eight hundred ninety-three thousand, two hundred".