6531534563364 has 192 divisors, whose sum is σ = 18420411985920. Its totient is φ = 1993064693760.

The previous prime is 6531534563363. The next prime is 6531534563369. The reversal of 6531534563364 is 4633654351356.

6531534563364 is a `hidden beast` number, since 6 + 5 + 3 + 15 + 3 + 4 + 563 + 3 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6531534563364.

It is not an unprimeable number, because it can be changed into a prime (6531534563363) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228305149 + ... + 228333755.

It is an arithmetic number, because the mean of its divisors is an integer number (95939645760).

Almost surely, 2^{6531534563364} 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 6531534563364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9210205992960).

6531534563364 is an abundant number, since it is smaller than the sum of its proper divisors (11888877422556).

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

6531534563364 is a wasteful number, since it uses less digits than its factorization.

6531534563364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32035 (or 32027 counting only the distinct ones).

The product of its digits is 34992000, while the sum is 54.

The spelling of 6531534563364 in words is "six trillion, five hundred thirty-one billion, five hundred thirty-four million, five hundred sixty-three thousand, three hundred sixty-four".