6534556369072 has 60 divisors (see below), whose sum is σ = 13118219193976. Its totient is φ = 3153197376000.

The previous prime is 6534556369067. The next prime is 6534556369111. The reversal of 6534556369072 is 2709636554356.

It is a self number, because there is not a number n which added to its sum of digits gives 6534556369072.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30181588 + ... + 30397324.

Almost surely, 2^{6534556369072} 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 6534556369072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6559109596988).

6534556369072 is an abundant number, since it is smaller than the sum of its proper divisors (6583662824904).

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

6534556369072 is a wasteful number, since it uses less digits than its factorization.

6534556369072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218054 (or 218019 counting only the distinct ones).

The product of its (nonzero) digits is 122472000, while the sum is 61.

The spelling of 6534556369072 in words is "six trillion, five hundred thirty-four billion, five hundred fifty-six million, three hundred sixty-nine thousand, seventy-two".