6613153052421 has 8 divisors (see below), whose sum is σ = 8817563173120. Its totient is φ = 4408755816672.

The previous prime is 6613153052413. The next prime is 6613153052431. The reversal of 6613153052421 is 1242503513166.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6613153052421 - 2³ = 6613153052413 is a prime.

It is a super-2 number, since 2×6613153052421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6613153052421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6613153052431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952245 + ... + 4127658.

It is an arithmetic number, because the mean of its divisors is an integer number (1102195396640).

Almost surely, 2^{6613153052421} is an apocalyptic number.

It is an amenable number.

6613153052421 is a deficient number, since it is larger than the sum of its proper divisors (2204410120699).

6613153052421 is a wasteful number, since it uses less digits than its factorization.

6613153052421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442475.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 6613153052421 its reverse (1242503513166), we get a palindrome (7855656565587).

The spelling of 6613153052421 in words is "six trillion, six hundred thirteen billion, one hundred fifty-three million, fifty-two thousand, four hundred twenty-one".