8855651556 has 36 divisors (see below), whose sum is σ = 23563285200. Its totient is φ = 2796521328.

The previous prime is 8855651531. The next prime is 8855651557. The reversal of 8855651556 is 6551565588.

It is a happy number.

8855651556 is a `hidden beast` number, since 8 + 85 + 5 + 6 + 5 + 1 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8855651556² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8855651557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6472746 + ... + 6474113.

It is an arithmetic number, because the mean of its divisors is an integer number (654535700).

Almost surely, 2^8855651556 is an apocalyptic number.

It is an amenable number.

8855651556 is an abundant number, since it is smaller than the sum of its proper divisors (14707633644).

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

8855651556 is a wasteful number, since it uses less digits than its factorization.

8855651556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946888 (or 12946883 counting only the distinct ones).

The product of its digits is 7200000, while the sum is 54.

The square root of 8855651556 is about 94104.4714984362. The cubic root of 8855651556 is about 2068.9032094878.

The spelling of 8855651556 in words is "eight billion, eight hundred fifty-five million, six hundred fifty-one thousand, five hundred fifty-six".