6550644003501 has 8 divisors (see below), whose sum is σ = 9406052928160. Its totient is φ = 4031165540592.

The previous prime is 6550644003469. The next prime is 6550644003517. The reversal of 6550644003501 is 1053004460556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6550644003501 - 2⁵ = 6550644003469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 167965230859 = 6550644003501 / (6 + 5 + 5 + 0 + 6 + 4 + 4 + 0 + 0 + 3 + 5 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6550644003501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550644008501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83982615391 + ... + 83982615468.

It is an arithmetic number, because the mean of its divisors is an integer number (1175756616020).

Almost surely, 2^{6550644003501} is an apocalyptic number.

It is an amenable number.

6550644003501 is a deficient number, since it is larger than the sum of its proper divisors (2855408924659).

6550644003501 is a wasteful number, since it uses less digits than its factorization.

6550644003501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167965230875.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 6550644003501 in words is "six trillion, five hundred fifty billion, six hundred forty-four million, three thousand, five hundred one".