2250534618165 has 16 divisors (see below), whose sum is σ = 3601763186688. Its totient is φ = 1199982530496.

The previous prime is 2250534618161. The next prime is 2250534618173. The reversal of 2250534618165 is 5618164350522.

It is not a de Polignac number, because 2250534618165 - 2² = 2250534618161 is a prime.

It is a super-4 number, since 4×2250534618165⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250534618161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18850962 + ... + 18969971.

It is an arithmetic number, because the mean of its divisors is an integer number (225110199168).

Almost surely, 2^{2250534618165} is an apocalyptic number.

It is an amenable number.

2250534618165 is a deficient number, since it is larger than the sum of its proper divisors (1351228568523).

2250534618165 is a wasteful number, since it uses less digits than its factorization.

2250534618165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37824908.

The product of its (nonzero) digits is 1728000, while the sum is 48.

Adding to 2250534618165 its reverse (5618164350522), we get a palindrome (7868698968687).

The spelling of 2250534618165 in words is "two trillion, two hundred fifty billion, five hundred thirty-four million, six hundred eighteen thousand, one hundred sixty-five".