5661066416 has 20 divisors (see below), whose sum is σ = 11545596600. Its totient is φ = 2681557632.

The previous prime is 5661066413. The next prime is 5661066427. The reversal of 5661066416 is 6146601665.

It is not an unprimeable number, because it can be changed into a prime (5661066413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9310661 + ... + 9311268.

It is an arithmetic number, because the mean of its divisors is an integer number (577279830).

Almost surely, 2^5661066416 is an apocalyptic number.

It is an amenable number.

5661066416 is an abundant number, since it is smaller than the sum of its proper divisors (5884530184).

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

5661066416 is a wasteful number, since it uses less digits than its factorization.

5661066416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18621956 (or 18621950 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 5661066416 is about 75240.0585858358. The cubic root of 5661066416 is about 1782.2395763285.

The spelling of 5661066416 in words is "five billion, six hundred sixty-one million, sixty-six thousand, four hundred sixteen".