11960646673640 has 128 divisors (see below), whose sum is σ = 31585813401600. Its totient is φ = 3991119417600.

The previous prime is 11960646673639. The next prime is 11960646673693. The reversal of 11960646673640 is 4637664606911.

It is a self number, because there is not a number n which added to its sum of digits gives 11960646673640.

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, 183086 + ... + 4894365.

It is an arithmetic number, because the mean of its divisors is an integer number (246764167200).

Almost surely, 2^{11960646673640} is an apocalyptic number.

11960646673640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11960646673640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15792906700800).

11960646673640 is an abundant number, since it is smaller than the sum of its proper divisors (19625166727960).

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

11960646673640 is a wasteful number, since it uses less digits than its factorization.

11960646673640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077695 (or 5077691 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 59.

The spelling of 11960646673640 in words is "eleven trillion, nine hundred sixty billion, six hundred forty-six million, six hundred seventy-three thousand, six hundred forty".