6215561012340 has 576 divisors, whose sum is σ = 21449699002368. Its totient is φ = 1504040140800.

The previous prime is 6215561012303. The next prime is 6215561012351. The reversal of 6215561012340 is 432101655126.

6215561012340 is a `hidden beast` number, since 6 + 2 + 1 + 5 + 5 + 610 + 1 + 2 + 34 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6215561012295 and 6215561012304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 709453560 + ... + 709462320.

It is an arithmetic number, because the mean of its divisors is an integer number (37239060768).

Almost surely, 2^{6215561012340} is an apocalyptic number.

6215561012340 is a gapful number since it is divisible by the number (60) 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 6215561012340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10724849501184).

6215561012340 is an abundant number, since it is smaller than the sum of its proper divisors (15234137990028).

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

6215561012340 is a wasteful number, since it uses less digits than its factorization.

6215561012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110 (or 9096 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 6215561012340 its reverse (432101655126), we get a palindrome (6647662667466).

The spelling of 6215561012340 in words is "six trillion, two hundred fifteen billion, five hundred sixty-one million, twelve thousand, three hundred forty".