6505211212000 has 192 divisors, whose sum is σ = 16577072366400. Its totient is φ = 2505881548800.

The previous prime is 6505211211943. The next prime is 6505211212009. The reversal of 6505211212000 is 2121125056.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505211212009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45051919 + ... + 45196081.

It is an arithmetic number, because the mean of its divisors is an integer number (86338918575).

Almost surely, 2^{6505211212000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6505211212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8288536183200).

6505211212000 is an abundant number, since it is smaller than the sum of its proper divisors (10071861154400).

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

6505211212000 is a wasteful number, since it uses less digits than its factorization.

6505211212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144606 (or 144588 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 6505211212000 its reverse (2121125056), we get a palindrome (6507332337056).

The spelling of 6505211212000 in words is "six trillion, five hundred five billion, two hundred eleven million, two hundred twelve thousand".