4216265645 has 4 divisors (see below), whose sum is σ = 5059518780. Its totient is φ = 3373012512.

The previous prime is 4216265597. The next prime is 4216265657. The reversal of 4216265645 is 5465626124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 883397284 + 3332868361 = 29722^2 + 57731^2 .

It is a cyclic number.

It is not a de Polignac number, because 4216265645 - 2²² = 4212071341 is a prime.

It is a super-3 number, since 3×4216265645³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421626560 + ... + 421626569.

It is an arithmetic number, because the mean of its divisors is an integer number (1264879695).

Almost surely, 2^4216265645 is an apocalyptic number.

It is an amenable number.

4216265645 is a deficient number, since it is larger than the sum of its proper divisors (843253135).

4216265645 is an equidigital number, since it uses as much as digits as its factorization.

4216265645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843253134.

The product of its digits is 345600, while the sum is 41.

The square root of 4216265645 is about 64932.7778937572. Note that the first 3 decimals coincide. The cubic root of 4216265645 is about 1615.5087771339.

The spelling of 4216265645 in words is "four billion, two hundred sixteen million, two hundred sixty-five thousand, six hundred forty-five".