5605413661 has 8 divisors (see below), whose sum is σ = 5630186880. Its totient is φ = 5580670128.

The previous prime is 5605413643. The next prime is 5605413673. The reversal of 5605413661 is 1663145065.

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

It is a cyclic number.

It is not a de Polignac number, because 5605413661 - 2²³ = 5597025053 is a prime.

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 5605413661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605413691) 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, 425800 + ... + 438766.

It is an arithmetic number, because the mean of its divisors is an integer number (703773360).

Almost surely, 2^5605413661 is an apocalyptic number.

It is an amenable number.

5605413661 is a deficient number, since it is larger than the sum of its proper divisors (24773219).

5605413661 is a wasteful number, since it uses less digits than its factorization.

5605413661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14843.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 5605413661 is about 74869.3105417701. The cubic root of 5605413661 is about 1776.3800586212.

The spelling of 5605413661 in words is "five billion, six hundred five million, four hundred thirteen thousand, six hundred sixty-one".