8535563556156 has 432 divisors, whose sum is σ = 27525593432064. Its totient is φ = 2171673504000.

The previous prime is 8535563556109. The next prime is 8535563556209. The reversal of 8535563556156 is 6516553655358.

8535563556156 is a `hidden beast` number, since 8 + 5 + 3 + 5 + 5 + 6 + 3 + 5 + 5 + 615 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 8535563556093 and 8535563556102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1042062021 + ... + 1042070211.

Almost surely, 2^{8535563556156} 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 8535563556156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13762796716032).

8535563556156 is an abundant number, since it is smaller than the sum of its proper divisors (18990029875908).

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

8535563556156 is a wasteful number, since it uses less digits than its factorization.

8535563556156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614 (or 8578 counting only the distinct ones).

The product of its digits is 243000000, while the sum is 63.

The spelling of 8535563556156 in words is "eight trillion, five hundred thirty-five billion, five hundred sixty-three million, five hundred fifty-six thousand, one hundred fifty-six".