66704066703370 has 64 divisors (see below), whose sum is σ = 135160471514880. Its totient is φ = 23567074905088.

The previous prime is 66704066703367. The next prime is 66704066703389. The reversal of 66704066703370 is 7330766040766.

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 31 ways as a sum of consecutive naturals, for example, 160734880 + ... + 161149339.

It is an arithmetic number, because the mean of its divisors is an integer number (2111882367420).

Almost surely, 2^{66704066703370} is an apocalyptic number.

66704066703370 is an abundant number, since it is smaller than the sum of its proper divisors (68456404811510).

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

66704066703370 is a wasteful number, since it uses less digits than its factorization.

66704066703370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321884319.

The product of its (nonzero) digits is 16003008, while the sum is 55.

The spelling of 66704066703370 in words is "sixty-six trillion, seven hundred four billion, sixty-six million, seven hundred three thousand, three hundred seventy".