4466522561 has 4 divisors (see below), whose sum is σ = 4467663300. Its totient is φ = 4465381824.

The previous prime is 4466522519. The next prime is 4466522569. The reversal of 4466522561 is 1652256644.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 892874161 + 3573648400 = 29881^2 + 59780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4466522561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4466522569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564476 + ... + 572333.

It is an arithmetic number, because the mean of its divisors is an integer number (1116915825).

Almost surely, 2^4466522561 is an apocalyptic number.

It is an amenable number.

4466522561 is a deficient number, since it is larger than the sum of its proper divisors (1140739).

4466522561 is a wasteful number, since it uses less digits than its factorization.

4466522561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140738.

The product of its digits is 345600, while the sum is 41.

The square root of 4466522561 is about 66832.0474099066. The cubic root of 4466522561 is about 1646.8593531495.

The spelling of 4466522561 in words is "four billion, four hundred sixty-six million, five hundred twenty-two thousand, five hundred sixty-one".