6550660511065 has 16 divisors (see below), whose sum is σ = 8575485494976. Its totient is φ = 4764074862400.

The previous prime is 6550660511033. The next prime is 6550660511071. The reversal of 6550660511065 is 5601150660556.

It is not a de Polignac number, because 6550660511065 - 2⁵ = 6550660511033 is a prime.

It is a super-2 number, since 2×6550660511065² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6685650 + ... + 7602580.

It is an arithmetic number, because the mean of its divisors is an integer number (535967843436).

Almost surely, 2^{6550660511065} is an apocalyptic number.

It is an amenable number.

6550660511065 is a deficient number, since it is larger than the sum of its proper divisors (2024824983911).

6550660511065 is a wasteful number, since it uses less digits than its factorization.

6550660511065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046840.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 6550660511065 in words is "six trillion, five hundred fifty billion, six hundred sixty million, five hundred eleven thousand, sixty-five".