11980285533643 has 32 divisors (see below), whose sum is σ = 13780452188160. Its totient is φ = 10202572723200.

The previous prime is 11980285533631. The next prime is 11980285533737. The reversal of 11980285533643 is 34633558208911.

It is a cyclic number.

It is not a de Polignac number, because 11980285533643 - 2⁵ = 11980285533611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11980285533613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 801295818 + ... + 801310768.

It is an arithmetic number, because the mean of its divisors is an integer number (430639130880).

Almost surely, 2^{11980285533643} is an apocalyptic number.

11980285533643 is a deficient number, since it is larger than the sum of its proper divisors (1800166654517).

11980285533643 is a wasteful number, since it uses less digits than its factorization.

11980285533643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16467.

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 11980285533643 in words is "eleven trillion, nine hundred eighty billion, two hundred eighty-five million, five hundred thirty-three thousand, six hundred forty-three".