6561051050 has 12 divisors (see below), whose sum is σ = 12203555046. Its totient is φ = 2624420400.

The previous prime is 6561050989. The next prime is 6561051059. The reversal of 6561051050 is 501501656.

It can be written as a sum of positive squares in 3 ways, for example, as 5055067801 + 1505983249 = 71099^2 + 38807^2 .

It is a super-2 number, since 2×6561051050² = 86094781761412205000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6561051059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65610461 + ... + 65610560.

Almost surely, 2^6561051050 is an apocalyptic number.

6561051050 is a deficient number, since it is larger than the sum of its proper divisors (5642503996).

6561051050 is a wasteful number, since it uses less digits than its factorization.

6561051050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131221033 (or 131221028 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 6561051050 is about 81000.3151228438. The cubic root of 6561051050 is about 1872.0802961653.

The spelling of 6561051050 in words is "six billion, five hundred sixty-one million, fifty-one thousand, fifty".