44443552161 has 4 divisors (see below), whose sum is σ = 59258069552. Its totient is φ = 29629034772.

The previous prime is 44443552151. The next prime is 44443552177. The reversal of 44443552161 is 16125534444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44443552161 - 2¹⁷ = 44443421089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44443552141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7407258691 + ... + 7407258696.

It is an arithmetic number, because the mean of its divisors is an integer number (14814517388).

Almost surely, 2^44443552161 is an apocalyptic number.

It is an amenable number.

44443552161 is a deficient number, since it is larger than the sum of its proper divisors (14814517391).

44443552161 is a wasteful number, since it uses less digits than its factorization.

44443552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14814517390.

The product of its digits is 230400, while the sum is 39.

The spelling of 44443552161 in words is "forty-four billion, four hundred forty-three million, five hundred fifty-two thousand, one hundred sixty-one".