4511164421 has 4 divisors (see below), whose sum is σ = 4776527052. Its totient is φ = 4245801792.

The previous prime is 4511164393. The next prime is 4511164453. The reversal of 4511164421 is 1244611154.

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 3397607521 + 1113556900 = 58289^2 + 33370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4511164421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4511164121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132681290 + ... + 132681323.

It is an arithmetic number, because the mean of its divisors is an integer number (1194131763).

Almost surely, 2^4511164421 is an apocalyptic number.

It is an amenable number.

4511164421 is a deficient number, since it is larger than the sum of its proper divisors (265362631).

4511164421 is a wasteful number, since it uses less digits than its factorization.

4511164421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265362630.

The product of its digits is 3840, while the sum is 29.

The square root of 4511164421 is about 67165.2024563315. The cubic root of 4511164421 is about 1652.3278341313.

Adding to 4511164421 its reverse (1244611154), we get a palindrome (5755775575).

The spelling of 4511164421 in words is "four billion, five hundred eleven million, one hundred sixty-four thousand, four hundred twenty-one".