6001005556 has 24 divisors (see below), whose sum is σ = 12925243520. Its totient is φ = 2374024032.

The previous prime is 6001005553. The next prime is 6001005557. The reversal of 6001005556 is 6555001006.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001005553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8242776 + ... + 8243503.

Almost surely, 2^6001005556 is an apocalyptic number.

It is an amenable number.

6001005556 is an abundant number, since it is smaller than the sum of its proper divisors (6924237964).

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

6001005556 is a wasteful number, since it uses less digits than its factorization.

6001005556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16486303 (or 16486301 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 6001005556 is about 77466.1574882865. The cubic root of 6001005556 is about 1817.2220991904. Note that the first 3 decimals are identical.

The spelling of 6001005556 in words is "six billion, one million, five thousand, five hundred fifty-six".