44643644035661 has 8 divisors (see below), whose sum is σ = 48703569159648. Its totient is φ = 40583954250000.

The previous prime is 44643644035631. The next prime is 44643644035721. The reversal of 44643644035661 is 16653044634644.

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 44643644035661 - 2¹⁰ = 44643644034637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44643644035597 and 44643644035606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44643644035631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58437815 + ... + 59196836.

It is an arithmetic number, because the mean of its divisors is an integer number (6087946144956).

Almost surely, 2^{44643644035661} is an apocalyptic number.

It is an amenable number.

44643644035661 is a deficient number, since it is larger than the sum of its proper divisors (4059925123987).

44643644035661 is a wasteful number, since it uses less digits than its factorization.

44643644035661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117669163.

The product of its (nonzero) digits is 59719680, while the sum is 56.

The spelling of 44643644035661 in words is "forty-four trillion, six hundred forty-three billion, six hundred forty-four million, thirty-five thousand, six hundred sixty-one".