444655487463661 has 8 divisors (see below), whose sum is σ = 446193338632704. Its totient is φ = 443118329184720.

The previous prime is 444655487463647. The next prime is 444655487463683. The reversal of 444655487463661 is 166364784556444.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 444655487463661 - 2¹³ = 444655487455469 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 (444655487463361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171936810 + ... + 174503803.

It is an arithmetic number, because the mean of its divisors is an integer number (55774167329088).

Almost surely, 2^{444655487463661} is an apocalyptic number.

It is an amenable number.

444655487463661 is a deficient number, since it is larger than the sum of its proper divisors (1537851169043).

444655487463661 is a wasteful number, since it uses less digits than its factorization.

444655487463661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346445051.

The product of its digits is 5573836800, while the sum is 73.

The spelling of 444655487463661 in words is "four hundred forty-four trillion, six hundred fifty-five billion, four hundred eighty-seven million, four hundred sixty-three thousand, six hundred sixty-one".