4561661654 has 8 divisors (see below), whose sum is σ = 7464537288. Its totient is φ = 2073482560.

The previous prime is 4561661647. The next prime is 4561661659.

4561661654 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561661659) 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, 103674107 + ... + 103674150.

It is an arithmetic number, because the mean of its divisors is an integer number (933067161).

Almost surely, 2^4561661654 is an apocalyptic number.

4561661654 is a deficient number, since it is larger than the sum of its proper divisors (2902875634).

4561661654 is a wasteful number, since it uses less digits than its factorization.

4561661654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207348270.

The product of its digits is 518400, while the sum is 44.

The square root of 4561661654 is about 67540.0744299264. The cubic root of 4561661654 is about 1658.4702670885.

The spelling of 4561661654 in words is "four billion, five hundred sixty-one million, six hundred sixty-one thousand, six hundred fifty-four".