44642244155 has 4 divisors (see below), whose sum is σ = 53570692992. Its totient is φ = 35713795320.

The previous prime is 44642244133. The next prime is 44642244167. The reversal of 44642244155 is 55144224644.

44642244155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44642244155 - 2¹⁰ = 44642243131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4464224411 + ... + 4464224420.

It is an arithmetic number, because the mean of its divisors is an integer number (13392673248).

Almost surely, 2^44642244155 is an apocalyptic number.

44642244155 is a deficient number, since it is larger than the sum of its proper divisors (8928448837).

44642244155 is an equidigital number, since it uses as much as digits as its factorization.

44642244155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928448836.

The product of its digits is 614400, while the sum is 41.

Adding to 44642244155 its reverse (55144224644), we get a palindrome (99786468799).

The spelling of 44642244155 in words is "forty-four billion, six hundred forty-two million, two hundred forty-four thousand, one hundred fifty-five".