8155896100 has 81 divisors (see below), whose sum is σ = 19477221043. Its totient is φ = 2962168000.

The previous prime is 8155896083. The next prime is 8155896109. The reversal of 8155896100 is 16985518.

The square root of 8155896100 is 90310.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1107957796 + 7047938304 = 33286^2 + 83952^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8155896109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9933690 + ... + 9934510.

Almost surely, 2^8155896100 is an apocalyptic number.

8155896100 is the 90310-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8155896100

8155896100 is an abundant number, since it is smaller than the sum of its proper divisors (11321324943).

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

8155896100 is a wasteful number, since it uses less digits than its factorization.

8155896100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 43.

The cubic root of 8155896100 is about 2012.9078560747.

The spelling of 8155896100 in words is "eight billion, one hundred fifty-five million, eight hundred ninety-six thousand, one hundred".