5661016443 has 24 divisors (see below), whose sum is σ = 8391342960. Its totient is φ = 3676121280.

The previous prime is 5661016441. The next prime is 5661016469. The reversal of 5661016443 is 3446101665.

It is a happy number.

5661016443 is a `hidden beast` number, since 5 + 6 + 6 + 1 + 0 + 1 + 644 + 3 = 666.

It is not a de Polignac number, because 5661016443 - 2¹ = 5661016441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5661016398 and 5661016407.

It is not an unprimeable number, because it can be changed into a prime (5661016441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23613 + ... + 108993.

It is an arithmetic number, because the mean of its divisors is an integer number (349639290).

Almost surely, 2^5661016443 is an apocalyptic number.

5661016443 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

5661016443 is a deficient number, since it is larger than the sum of its proper divisors (2730326517).

5661016443 is a wasteful number, since it uses less digits than its factorization.

5661016443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85579 (or 85576 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 5661016443 is about 75239.7264947182. The cubic root of 5661016443 is about 1782.2343320798.

The spelling of 5661016443 in words is "five billion, six hundred sixty-one million, sixteen thousand, four hundred forty-three".