6551113145 has 8 divisors (see below), whose sum is σ = 7865861640. Its totient is φ = 5237873280.

The previous prime is 6551113141. The next prime is 6551113171. The reversal of 6551113145 is 5413111556.

It can be written as a sum of positive squares in 4 ways, for example, as 845879056 + 5705234089 = 29084^2 + 75533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6551113145 - 2² = 6551113141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6551113141) 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 7 ways as a sum of consecutive naturals, for example, 367580 + ... + 384989.

It is an arithmetic number, because the mean of its divisors is an integer number (983232705).

Almost surely, 2^6551113145 is an apocalyptic number.

It is an amenable number.

6551113145 is a deficient number, since it is larger than the sum of its proper divisors (1314748495).

6551113145 is a wasteful number, since it uses less digits than its factorization.

6551113145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754315.

The product of its digits is 9000, while the sum is 32.

The square root of 6551113145 is about 80938.9470218139. The cubic root of 6551113145 is about 1871.1346165156.

The spelling of 6551113145 in words is "six billion, five hundred fifty-one million, one hundred thirteen thousand, one hundred forty-five".