544412306661 has 16 divisors (see below), whose sum is σ = 768597133824. Its totient is φ = 341585345024.

The previous prime is 544412306651. The next prime is 544412306689. The reversal of 544412306661 is 166603214445.

It is a cyclic number.

It is not a de Polignac number, because 544412306661 - 2⁶ = 544412306597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544412306651) 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, 4458721 + ... + 4579193.

It is an arithmetic number, because the mean of its divisors is an integer number (48037320864).

Almost surely, 2^544412306661 is an apocalyptic number.

544412306661 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

544412306661 is a deficient number, since it is larger than the sum of its proper divisors (224184827163).

544412306661 is a wasteful number, since it uses less digits than its factorization.

544412306661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209100.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 544412306661 in words is "five hundred forty-four billion, four hundred twelve million, three hundred six thousand, six hundred sixty-one".