4424567661 has 12 divisors (see below), whose sum is σ = 6668913888. Its totient is φ = 2821463304.

The previous prime is 4424567657. The next prime is 4424567663. The reversal of 4424567661 is 1667654244.

4424567661 is a `hidden beast` number, since 4 + 4 + 24 + 567 + 6 + 61 = 666.

It is not a de Polignac number, because 4424567661 - 2² = 4424567657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424567663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10687155 + ... + 10687568.

It is an arithmetic number, because the mean of its divisors is an integer number (555742824).

Almost surely, 2^4424567661 is an apocalyptic number.

It is an amenable number.

4424567661 is a deficient number, since it is larger than the sum of its proper divisors (2244346227).

4424567661 is a wasteful number, since it uses less digits than its factorization.

4424567661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21374752 (or 21374749 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 4424567661 is about 66517.4237399495. The cubic root of 4424567661 is about 1641.6867017381.

The spelling of 4424567661 in words is "four billion, four hundred twenty-four million, five hundred sixty-seven thousand, six hundred sixty-one".