6540445113436 has 24 divisors (see below), whose sum is σ = 12334861481040. Its totient is φ = 3016551547392.

The previous prime is 6540445113431. The next prime is 6540445113469. The reversal of 6540445113436 is 6343115440456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540445113431) 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, 43996501 + ... + 44144908.

It is an arithmetic number, because the mean of its divisors is an integer number (513952561710).

Almost surely, 2^{6540445113436} is an apocalyptic number.

It is an amenable number.

6540445113436 is a deficient number, since it is larger than the sum of its proper divisors (5794416367604).

6540445113436 is a wasteful number, since it uses less digits than its factorization.

6540445113436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88142853 (or 88142851 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 6540445113436 in words is "six trillion, five hundred forty billion, four hundred forty-five million, one hundred thirteen thousand, four hundred thirty-six".