6604121063 has 4 divisors (see below), whose sum is σ = 6604284768. Its totient is φ = 6603957360.

The previous prime is 6604120997. The next prime is 6604121093. The reversal of 6604121063 is 3601214066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6604121063 - 2⁸ = 6604120807 is a prime.

It is a super-2 number, since 2×6604121063² = 87228830029520499938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604121093) 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, 26258 + ... + 117888.

It is an arithmetic number, because the mean of its divisors is an integer number (1651071192).

Almost surely, 2^6604121063 is an apocalyptic number.

6604121063 is a deficient number, since it is larger than the sum of its proper divisors (163705).

6604121063 is an equidigital number, since it uses as much as digits as its factorization.

6604121063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163704.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6604121063 is about 81265.7434778025. The cubic root of 6604121063 is about 1876.1677881298.

The spelling of 6604121063 in words is "six billion, six hundred four million, one hundred twenty-one thousand, sixty-three".