6499043481216 has 512 divisors, whose sum is σ = 21372978816000. Its totient is φ = 1720262983680.

The previous prime is 6499043481181. The next prime is 6499043481223. The reversal of 6499043481216 is 6121843409946.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1063148176 + ... + 1063154288.

It is an arithmetic number, because the mean of its divisors is an integer number (41744099250).

Almost surely, 2^{6499043481216} is an apocalyptic number.

6499043481216 is a gapful number since it is divisible by the number (66) 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 6499043481216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10686489408000).

6499043481216 is an abundant number, since it is smaller than the sum of its proper divisors (14873935334784).

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

6499043481216 is a wasteful number, since it uses less digits than its factorization.

6499043481216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7192 (or 7180 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 6499043481216 in words is "six trillion, four hundred ninety-nine billion, forty-three million, four hundred eighty-one thousand, two hundred sixteen".