8815945656 has 64 divisors (see below), whose sum is σ = 25774214400. Its totient is φ = 2460261888.

The previous prime is 8815945643. The next prime is 8815945657. The reversal of 8815945656 is 6565495188.

8815945656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8815945596 and 8815945605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8815945657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602961 + ... + 617408.

It is an arithmetic number, because the mean of its divisors is an integer number (402722100).

Almost surely, 2^8815945656 is an apocalyptic number.

8815945656 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

8815945656 is an abundant number, since it is smaller than the sum of its proper divisors (16958268744).

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

8815945656 is a wasteful number, since it uses less digits than its factorization.

8815945656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220428 (or 1220424 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 57.

The square root of 8815945656 is about 93893.2673624685. The cubic root of 8815945656 is about 2065.8064772390.

The spelling of 8815945656 in words is "eight billion, eight hundred fifteen million, nine hundred forty-five thousand, six hundred fifty-six".