6215356054544 has 80 divisors (see below), whose sum is σ = 14825852001408. Its totient is φ = 2458056001536.

The previous prime is 6215356054529. The next prime is 6215356054547. The reversal of 6215356054544 is 4454506535126.

It is a junction number, because it is equal to n+sod(n) for n = 6215356054492 and 6215356054501.

It is not an unprimeable number, because it can be changed into a prime (6215356054547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4020479 + ... + 5347425.

Almost surely, 2^{6215356054544} 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 6215356054544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7412926000704).

6215356054544 is an abundant number, since it is smaller than the sum of its proper divisors (8610495946864).

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

6215356054544 is a wasteful number, since it uses less digits than its factorization.

6215356054544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330192 (or 1330186 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 50.

The spelling of 6215356054544 in words is "six trillion, two hundred fifteen billion, three hundred fifty-six million, fifty-four thousand, five hundred forty-four".