5945921855664 has 160 divisors (see below), whose sum is σ = 17782195200000. Its totient is φ = 1676825010432.

The previous prime is 5945921855569. The next prime is 5945921855681. The reversal of 5945921855664 is 4665581295495.

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, 92845447 + ... + 92909465.

It is an arithmetic number, because the mean of its divisors is an integer number (111138720000).

Almost surely, 2^{5945921855664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5945921855664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8891097600000).

5945921855664 is an abundant number, since it is smaller than the sum of its proper divisors (11836273344336).

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

5945921855664 is a wasteful number, since it uses less digits than its factorization.

5945921855664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67615 (or 67609 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 69.

The spelling of 5945921855664 in words is "five trillion, nine hundred forty-five billion, nine hundred twenty-one million, eight hundred fifty-five thousand, six hundred sixty-four".