11545882131664 has 20 divisors (see below), whose sum is σ = 22419968796900. Its totient is φ = 5760083732480.

The previous prime is 11545882131649. The next prime is 11545882131757. The reversal of 11545882131664 is 46613128854511.

It can be written as a sum of positive squares in 2 ways, for example, as 3969625881664 + 7576256250000 = 1992392^2 + 2752500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803575927 + ... + 803590294.

It is an arithmetic number, because the mean of its divisors is an integer number (1120998439845).

Almost surely, 2^{11545882131664} is an apocalyptic number.

It is an amenable number.

11545882131664 is a deficient number, since it is larger than the sum of its proper divisors (10874086665236).

11545882131664 is a wasteful number, since it uses less digits than its factorization.

11545882131664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607166678 (or 1607166672 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 11545882131664 in words is "eleven trillion, five hundred forty-five billion, eight hundred eighty-two million, one hundred thirty-one thousand, six hundred sixty-four".