5661246436 has 24 divisors (see below), whose sum is σ = 9938368440. Its totient is φ = 2821728000.

The previous prime is 5661246407. The next prime is 5661246467. The reversal of 5661246436 is 6346421665.

It can be written as a sum of positive squares in 4 ways, for example, as 281904100 + 5379342336 = 16790^2 + 73344^2 .

It is a super-2 number, since 2×5661246436² = 64099422418245404192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5661246392 and 5661246401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2977086 + ... + 2978986.

It is an arithmetic number, because the mean of its divisors is an integer number (414098685).

Almost surely, 2^5661246436 is an apocalyptic number.

It is an amenable number.

5661246436 is a deficient number, since it is larger than the sum of its proper divisors (4277122004).

5661246436 is a wasteful number, since it uses less digits than its factorization.

5661246436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855 (or 3853 counting only the distinct ones).

The product of its digits is 622080, while the sum is 43.

The square root of 5661246436 is about 75241.2548805507. The cubic root of 5661246436 is about 1782.2584676671.

The spelling of 5661246436 in words is "five billion, six hundred sixty-one million, two hundred forty-six thousand, four hundred thirty-six".