5645043256020 has 48 divisors (see below), whose sum is σ = 18064138420608. Its totient is φ = 1290295601280.

The previous prime is 5645043255979. The next prime is 5645043256031. The reversal of 5645043256020 is 206523405465.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6720289171 + ... + 6720290010.

It is an arithmetic number, because the mean of its divisors is an integer number (376336217096).

Almost surely, 2^{5645043256020} is an apocalyptic number.

It is an amenable number.

5645043256020 is an abundant number, since it is smaller than the sum of its proper divisors (12419095164588).

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

5645043256020 is a wasteful number, since it uses less digits than its factorization.

5645043256020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440579200 (or 13440579198 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 5645043256020 in words is "five trillion, six hundred forty-five billion, forty-three million, two hundred fifty-six thousand, twenty".