6650665060065 has 16 divisors (see below), whose sum is σ = 11459607488448. Its totient is φ = 3274173567936.

The previous prime is 6650665060043. The next prime is 6650665060069. The reversal of 6650665060065 is 5600605660566.

It is a happy number.

It is not a de Polignac number, because 6650665060065 - 2¹¹ = 6650665058017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6650665060069) 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, 17052987139 + ... + 17052987528.

It is an arithmetic number, because the mean of its divisors is an integer number (716225468028).

Almost surely, 2^{6650665060065} is an apocalyptic number.

6650665060065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6650665060065 is a deficient number, since it is larger than the sum of its proper divisors (4808942428383).

6650665060065 is a wasteful number, since it uses less digits than its factorization.

6650665060065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34105974688.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 6650665060065 in words is "six trillion, six hundred fifty billion, six hundred sixty-five million, sixty thousand, sixty-five".