8215265942136 has 256 divisors, whose sum is σ = 25283017036800. Its totient is φ = 2450752012800.

The previous prime is 8215265942083. The next prime is 8215265942179. The reversal of 8215265942136 is 6312495625128.

8215265942136 is a `hidden beast` number, since 8 + 2 + 1 + 5 + 26 + 594 + 21 + 3 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114171226 + ... + 114243158.

It is an arithmetic number, because the mean of its divisors is an integer number (98761785300).

Almost surely, 2^{8215265942136} 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 8215265942136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12641508518400).

8215265942136 is an abundant number, since it is smaller than the sum of its proper divisors (17067751094664).

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

8215265942136 is a wasteful number, since it uses less digits than its factorization.

8215265942136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72707 (or 72697 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 8215265942136 in words is "eight trillion, two hundred fifteen billion, two hundred sixty-five million, nine hundred forty-two thousand, one hundred thirty-six".