5661406446 has 16 divisors (see below), whose sum is σ = 11423016144. Its totient is φ = 1870434944.

The previous prime is 5661406441. The next prime is 5661406463. The reversal of 5661406446 is 6446041665.

It is a junction number, because it is equal to n+sod(n) for n = 5661406398 and 5661406407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661406441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4174401 + ... + 4175756.

It is an arithmetic number, because the mean of its divisors is an integer number (713938509).

Almost surely, 2^5661406446 is an apocalyptic number.

5661406446 is an abundant number, since it is smaller than the sum of its proper divisors (5761609698).

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

5661406446 is a wasteful number, since it uses less digits than its factorization.

5661406446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350275.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 5661406446 is about 75242.3181859783. The cubic root of 5661406446 is about 1782.2752588157.

The spelling of 5661406446 in words is "five billion, six hundred sixty-one million, four hundred six thousand, four hundred forty-six".