6611452321 has 4 divisors (see below), whose sum is σ = 6611956372. Its totient is φ = 6610948272.

The previous prime is 6611452307. The next prime is 6611452357. The reversal of 6611452321 is 1232541166.

It is a happy number.

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 1769380096 + 4842072225 = 42064^2 + 69585^2 .

It is a cyclic number.

It is not a de Polignac number, because 6611452321 - 2¹³ = 6611444129 is a prime.

It is a super-2 number, since 2×6611452321² = 87422603585712574082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6611452721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231810 + ... + 258763.

It is an arithmetic number, because the mean of its divisors is an integer number (1652989093).

Almost surely, 2^6611452321 is an apocalyptic number.

It is an amenable number.

6611452321 is a deficient number, since it is larger than the sum of its proper divisors (504051).

6611452321 is a wasteful number, since it uses less digits than its factorization.

6611452321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504050.

The product of its digits is 8640, while the sum is 31.

The square root of 6611452321 is about 81310.8376601791. The cubic root of 6611452321 is about 1876.8617782111.

Adding to 6611452321 its reverse (1232541166), we get a palindrome (7843993487).

The spelling of 6611452321 in words is "six billion, six hundred eleven million, four hundred fifty-two thousand, three hundred twenty-one".