6503645491201 has 8 divisors (see below), whose sum is σ = 6648861366144. Its totient is φ = 6358714634640.

The previous prime is 6503645491181. The next prime is 6503645491207. The reversal of 6503645491201 is 1021945463056.

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

It is a cyclic number.

It is not a de Polignac number, because 6503645491201 - 2⁷ = 6503645491073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6503645491207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71208450 + ... + 71299723.

It is an arithmetic number, because the mean of its divisors is an integer number (831107670768).

Almost surely, 2^{6503645491201} is an apocalyptic number.

It is an amenable number.

6503645491201 is a deficient number, since it is larger than the sum of its proper divisors (145215874943).

6503645491201 is a wasteful number, since it uses less digits than its factorization.

6503645491201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142509191.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 6503645491201 in words is "six trillion, five hundred three billion, six hundred forty-five million, four hundred ninety-one thousand, two hundred one".