544764661 has 16 divisors (see below), whose sum is σ = 627959808. Its totient is φ = 462931200.

The previous prime is 544764557. The next prime is 544764697. The reversal of 544764661 is 166467445.

544764661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 544764661 - 2⁹ = 544764149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544764761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578451 + ... + 579391.

It is an arithmetic number, because the mean of its divisors is an integer number (39247488).

Almost surely, 2^544764661 is an apocalyptic number.

It is an amenable number.

544764661 is a deficient number, since it is larger than the sum of its proper divisors (83195147).

544764661 is a wasteful number, since it uses less digits than its factorization.

544764661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572.

The product of its digits is 483840, while the sum is 43.

The square root of 544764661 is about 23340.1941080189. The cubic root of 544764661 is about 816.7133269097.

The spelling of 544764661 in words is "five hundred forty-four million, seven hundred sixty-four thousand, six hundred sixty-one".