6545136561045 has 16 divisors (see below), whose sum is σ = 10472741987712. Its totient is φ = 3490565002560.

The previous prime is 6545136560909. The next prime is 6545136561079. The reversal of 6545136561045 is 5401656315456.

It is not a de Polignac number, because 6545136561045 - 2⁸ = 6545136560789 is a prime.

It is a super-2 number, since 2×6545136561045² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10595686 + ... + 11196375.

It is an arithmetic number, because the mean of its divisors is an integer number (654546374232).

Almost surely, 2^{6545136561045} is an apocalyptic number.

It is an amenable number.

6545136561045 is a deficient number, since it is larger than the sum of its proper divisors (3927605426667).

6545136561045 is a wasteful number, since it uses less digits than its factorization.

6545136561045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21812092.

The product of its (nonzero) digits is 6480000, while the sum is 51.

The spelling of 6545136561045 in words is "six trillion, five hundred forty-five billion, one hundred thirty-six million, five hundred sixty-one thousand, forty-five".