5661316464 has 20 divisors (see below), whose sum is σ = 14625067656. Its totient is φ = 1887105472.

The previous prime is 5661316417. The next prime is 5661316481. The reversal of 5661316464 is 4646131665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58971999 + ... + 58972094.

Almost surely, 2^5661316464 is an apocalyptic number.

It is an amenable number.

5661316464 is an abundant number, since it is smaller than the sum of its proper divisors (8963751192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5661316464 is a wasteful number, since it uses less digits than its factorization.

5661316464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117944104 (or 117944098 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 5661316464 is about 75241.7202355183. The cubic root of 5661316464 is about 1782.2658163127.

The spelling of 5661316464 in words is "five billion, six hundred sixty-one million, three hundred sixteen thousand, four hundred sixty-four".