4465555645 has 4 divisors (see below), whose sum is σ = 5358666780. Its totient is φ = 3572444512.

The previous prime is 4465555621. The next prime is 4465555711. The reversal of 4465555645 is 5465555644.

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 2481833124 + 1983722521 = 49818^2 + 44539^2 .

It is a cyclic number.

It is not a de Polignac number, because 4465555645 - 2²⁵ = 4432001213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446555560 + ... + 446555569.

It is an arithmetic number, because the mean of its divisors is an integer number (1339666695).

Almost surely, 2^4465555645 is an apocalyptic number.

It is an amenable number.

4465555645 is a deficient number, since it is larger than the sum of its proper divisors (893111135).

4465555645 is an equidigital number, since it uses as much as digits as its factorization.

4465555645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893111134.

The product of its digits is 7200000, while the sum is 49.

The square root of 4465555645 is about 66824.8130936406. The cubic root of 4465555645 is about 1646.7405068093.

Subtracting 4465555645 from its reverse (5465555644), we obtain a palindrome (999999999).

The spelling of 4465555645 in words is "four billion, four hundred sixty-five million, five hundred fifty-five thousand, six hundred forty-five".