42444614536661 has 16 divisors (see below), whose sum is σ = 42829618624128. Its totient is φ = 42061223424000.

The previous prime is 42444614536651. The next prime is 42444614536669. The reversal of 42444614536661 is 16663541644424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42444614536661 is a prime.

It is a super-3 number, since 3×42444614536661³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42444614536597 and 42444614536606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444614536669) 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, 262310021 + ... + 262471781.

It is an arithmetic number, because the mean of its divisors is an integer number (2676851164008).

Almost surely, 2^{42444614536661} is an apocalyptic number.

It is an amenable number.

42444614536661 is a deficient number, since it is larger than the sum of its proper divisors (385004087467).

42444614536661 is a wasteful number, since it uses less digits than its factorization.

42444614536661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166732.

The product of its digits is 39813120, while the sum is 56.

The spelling of 42444614536661 in words is "forty-two trillion, four hundred forty-four billion, six hundred fourteen million, five hundred thirty-six thousand, six hundred sixty-one".