44444156642655 has 128 divisors (see below), whose sum is σ = 89694239072256. Its totient is φ = 18255550348800.

The previous prime is 44444156642609. The next prime is 44444156642731. The reversal of 44444156642655 is 55624665144444.

It is not a de Polignac number, because 44444156642655 - 2²³ = 44444148254047 is a prime.

It is a super-2 number, since 2×44444156642655² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33423832 + ... + 34728098.

It is an arithmetic number, because the mean of its divisors is an integer number (700736242752).

Almost surely, 2^{44444156642655} is an apocalyptic number.

44444156642655 is an abundant number, since it is smaller than the sum of its proper divisors (45250082429601).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44444156642655 is a wasteful number, since it uses less digits than its factorization.

44444156642655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304637.

The product of its digits is 221184000, while the sum is 60.

The spelling of 44444156642655 in words is "forty-four trillion, four hundred forty-four billion, one hundred fifty-six million, six hundred forty-two thousand, six hundred fifty-five".