6600045253503 has 16 divisors (see below), whose sum is σ = 9478606446176. Its totient is φ = 4060872714240.

The previous prime is 6600045253481. The next prime is 6600045253517. The reversal of 6600045253503 is 3053525400066.

It is a de Polignac number, because none of the positive numbers 2^k-6600045253503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600045253103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14218558 + ... + 14675403.

It is an arithmetic number, because the mean of its divisors is an integer number (592412902886).

Almost surely, 2^{6600045253503} is an apocalyptic number.

6600045253503 is a deficient number, since it is larger than the sum of its proper divisors (2878561192673).

6600045253503 is a wasteful number, since it uses less digits than its factorization.

6600045253503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28899834.

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 6600045253503 in words is "six trillion, six hundred billion, forty-five million, two hundred fifty-three thousand, five hundred three".