6500555061 has 48 divisors (see below), whose sum is σ = 11845205568. Its totient is φ = 3117139200.

The previous prime is 6500555029. The next prime is 6500555069. The reversal of 6500555061 is 1605550056.

It is not a de Polignac number, because 6500555061 - 2⁵ = 6500555029 is a prime.

It is a super-2 number, since 2×6500555061² = 84514432202185427442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500555069) 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 47 ways as a sum of consecutive naturals, for example, 133600 + ... + 175641.

It is an arithmetic number, because the mean of its divisors is an integer number (246775116).

Almost surely, 2^6500555061 is an apocalyptic number.

It is an amenable number.

6500555061 is a deficient number, since it is larger than the sum of its proper divisors (5344650507).

6500555061 is a wasteful number, since it uses less digits than its factorization.

6500555061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309282 (or 309275 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 6500555061 is about 80626.0197516906. The cubic root of 6500555061 is about 1866.3086992395.

The spelling of 6500555061 in words is "six billion, five hundred million, five hundred fifty-five thousand, sixty-one".