4561452661 has 4 divisors (see below), whose sum is σ = 4629534112. Its totient is φ = 4493371212.

The previous prime is 4561452587. The next prime is 4561452673. The reversal of 4561452661 is 1662541654.

4561452661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4561452661 - 2¹⁵ = 4561419893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561452061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34040625 + ... + 34040758.

It is an arithmetic number, because the mean of its divisors is an integer number (1157383528).

Almost surely, 2^4561452661 is an apocalyptic number.

It is an amenable number.

4561452661 is a deficient number, since it is larger than the sum of its proper divisors (68081451).

4561452661 is an equidigital number, since it uses as much as digits as its factorization.

4561452661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68081450.

The product of its digits is 172800, while the sum is 40.

The square root of 4561452661 is about 67538.5272344608. The cubic root of 4561452661 is about 1658.4449390395. Note that the first 3 decimals are identical.

The spelling of 4561452661 in words is "four billion, five hundred sixty-one million, four hundred fifty-two thousand, six hundred sixty-one".