66093979128240 has 160 divisors (see below), whose sum is σ = 242236061614080. Its totient is φ = 14586257452032.

The previous prime is 66093979128161. The next prime is 66093979128271. The reversal of 66093979128240 is 4282197939066.

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, 678255664 + ... + 678353103.

It is an arithmetic number, because the mean of its divisors is an integer number (1513975385088).

Almost surely, 2^{66093979128240} is an apocalyptic number.

66093979128240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66093979128240 is an abundant number, since it is smaller than the sum of its proper divisors (176142082485840).

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

66093979128240 is a wasteful number, since it uses less digits than its factorization.

66093979128240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356608819 (or 1356608813 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 66.

The spelling of 66093979128240 in words is "sixty-six trillion, ninety-three billion, nine hundred seventy-nine million, one hundred twenty-eight thousand, two hundred forty".