5661030421264 has 15 divisors (see below), whose sum is σ = 10968264880743. Its totient is φ = 2830510452048.

The previous prime is 5661030421261. The next prime is 5661030421271. The reversal of 5661030421264 is 4621240301665.

The square root of 5661030421264 is 2379292.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×5661030421264² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5661030421261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9219757 + ... + 9814579.

Almost surely, 2^{5661030421264} is an apocalyptic number.

5661030421264 is the 2379292-nd square number.

It is an amenable number.

5661030421264 is a deficient number, since it is larger than the sum of its proper divisors (5307234459479).

5661030421264 is an frugal number, since it uses more digits than its factorization.

5661030421264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189654 (or 594825 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 5661030421264 in words is "five trillion, six hundred sixty-one billion, thirty million, four hundred twenty-one thousand, two hundred sixty-four".