2170051065 has 48 divisors (see below), whose sum is σ = 4629451008. Its totient is φ = 915712128.

The previous prime is 2170051043. The next prime is 2170051069. The reversal of 2170051065 is 5601500712.

2170051065 is a `hidden beast` number, since 21 + 70 + 0 + 510 + 65 = 666.

It is not a de Polignac number, because 2170051065 - 2¹² = 2170046969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2170051069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260869 + ... + 269058.

It is an arithmetic number, because the mean of its divisors is an integer number (96446896).

Almost surely, 2^2170051065 is an apocalyptic number.

It is an amenable number.

2170051065 is an abundant number, since it is smaller than the sum of its proper divisors (2459399943).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2170051065 is a wasteful number, since it uses less digits than its factorization.

2170051065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529958 (or 529955 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 2170051065 is about 46583.8068968177. The cubic root of 2170051065 is about 1294.6627456670.

Adding to 2170051065 its reverse (5601500712), we get a palindrome (7771551777).

The spelling of 2170051065 in words is "two billion, one hundred seventy million, fifty-one thousand, sixty-five".