6551306161 has 16 divisors (see below), whose sum is σ = 6876374400. Its totient is φ = 6233528448.

The previous prime is 6551306159. The next prime is 6551306189. The reversal of 6551306161 is 1616031556.

It is a cyclic number.

It is not a de Polignac number, because 6551306161 - 2¹ = 6551306159 is a prime.

It is a super-2 number, since 2×6551306161² = 85839224830313115842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6551306101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546316 + ... + 558178.

It is an arithmetic number, because the mean of its divisors is an integer number (429773400).

Almost surely, 2^6551306161 is an apocalyptic number.

It is an amenable number.

6551306161 is a deficient number, since it is larger than the sum of its proper divisors (325068239).

6551306161 is a wasteful number, since it uses less digits than its factorization.

6551306161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 6551306161 is about 80940.1393685482. The cubic root of 6551306161 is about 1871.1529928008.

The spelling of 6551306161 in words is "six billion, five hundred fifty-one million, three hundred six thousand, one hundred sixty-one".