2665165041 has 24 divisors (see below), whose sum is σ = 4799605824. Its totient is φ = 1384500960.

The previous prime is 2665165039. The next prime is 2665165147. The reversal of 2665165041 is 1405615662.

It is not a de Polignac number, because 2665165041 - 2¹ = 2665165039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2665164987 and 2665165005.

It is not an unprimeable number, because it can be changed into a prime (2665160041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1922226 + ... + 1923611.

It is an arithmetic number, because the mean of its divisors is an integer number (199983576).

Almost surely, 2^2665165041 is an apocalyptic number.

2665165041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2665165041 is a deficient number, since it is larger than the sum of its proper divisors (2134440783).

2665165041 is a wasteful number, since it uses less digits than its factorization.

2665165041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845861 (or 3845858 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2665165041 is about 51625.2364740347. The cubic root of 2665165041 is about 1386.4622075568.

The spelling of 2665165041 in words is "two billion, six hundred sixty-five million, one hundred sixty-five thousand, forty-one".