6551117061 has 4 divisors (see below), whose sum is σ = 8734822752. Its totient is φ = 4367411372.

The previous prime is 6551117057. The next prime is 6551117087. The reversal of 6551117061 is 1607111556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6551117061 - 2² = 6551117057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551117861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091852841 + ... + 1091852846.

It is an arithmetic number, because the mean of its divisors is an integer number (2183705688).

Almost surely, 2^6551117061 is an apocalyptic number.

It is an amenable number.

6551117061 is a deficient number, since it is larger than the sum of its proper divisors (2183705691).

6551117061 is a wasteful number, since it uses less digits than its factorization.

6551117061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183705690.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 6551117061 is about 80938.9712128836. The cubic root of 6551117061 is about 1871.1349893459.

The spelling of 6551117061 in words is "six billion, five hundred fifty-one million, one hundred seventeen thousand, sixty-one".