6540544212000 has 192 divisors, whose sum is σ = 21435194446848. Its totient is φ = 1743463680000.

The previous prime is 6540544211987. The next prime is 6540544212023. The reversal of 6540544212000 is 2124450456.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30986820 + ... + 31197180.

It is an arithmetic number, because the mean of its divisors is an integer number (111641637744).

Almost surely, 2^{6540544212000} is an apocalyptic number.

6540544212000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6540544212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10717597223424).

6540544212000 is an abundant number, since it is smaller than the sum of its proper divisors (14894650234848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6540544212000 is a wasteful number, since it uses less digits than its factorization.

6540544212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212980 (or 212962 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 6540544212000 its reverse (2124450456), we get a palindrome (6542668662456).

The spelling of 6540544212000 in words is "six trillion, five hundred forty billion, five hundred forty-four million, two hundred twelve thousand".