415565552561616 has 120 divisors (see below), whose sum is σ = 1167922677995840. Its totient is φ = 137936962672128.

The previous prime is 415565552561611. The next prime is 415565552561669. The reversal of 415565552561616 is 616165255565514.

415565552561616 is a `hidden beast` number, since 4 + 1 + 5 + 5 + 6 + 5 + 5 + 5 + 2 + 5 + 6 + 1 + 616 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415565552561611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55444500 + ... + 62491788.

Almost surely, 2^{415565552561616} 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 415565552561616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583961338997920).

415565552561616 is an abundant number, since it is smaller than the sum of its proper divisors (752357125434224).

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

415565552561616 is a wasteful number, since it uses less digits than its factorization.

415565552561616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049033 (or 7049024 counting only the distinct ones).

The product of its digits is 162000000, while the sum is 63.

The spelling of 415565552561616 in words is "four hundred fifteen trillion, five hundred sixty-five billion, five hundred fifty-two million, five hundred sixty-one thousand, six hundred sixteen".