44616861601 has 16 divisors (see below), whose sum is σ = 49726046160. Its totient is φ = 39748423680.

The previous prime is 44616861599. The next prime is 44616861613. The reversal of 44616861601 is 10616861644.

It can be written as a sum of positive squares in 8 ways, for example, as 960938001 + 43655923600 = 30999^2 + 208940^2 .

It is a cyclic number.

It is not a de Polignac number, because 44616861601 - 2¹ = 44616861599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44616861691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954741 + ... + 1000381.

It is an arithmetic number, because the mean of its divisors is an integer number (3107877885).

Almost surely, 2^44616861601 is an apocalyptic number.

It is an amenable number.

44616861601 is a deficient number, since it is larger than the sum of its proper divisors (5109184559).

44616861601 is a wasteful number, since it uses less digits than its factorization.

44616861601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48276.

The product of its (nonzero) digits is 165888, while the sum is 43.

Adding to 44616861601 its sum of digits (43), we get a palindrome (44616861644).

The spelling of 44616861601 in words is "forty-four billion, six hundred sixteen million, eight hundred sixty-one thousand, six hundred one".