44400015220145 has 32 divisors (see below), whose sum is σ = 61156028505600. Its totient is φ = 30654650649600.

The previous prime is 44400015220133. The next prime is 44400015220181. The reversal of 44400015220145 is 54102251000444.

It is a de Polignac number, because none of the positive numbers 2^k-44400015220145 is a prime.

It is a super-2 number, since 2×44400015220145² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132882845 + ... + 133216554.

It is an arithmetic number, because the mean of its divisors is an integer number (1911125890800).

Almost surely, 2^{44400015220145} is an apocalyptic number.

It is an amenable number.

44400015220145 is a deficient number, since it is larger than the sum of its proper divisors (16756013285455).

44400015220145 is a wasteful number, since it uses less digits than its factorization.

44400015220145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266099585.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 44400015220145 its reverse (54102251000444), we get a palindrome (98502266220589).

The spelling of 44400015220145 in words is "forty-four trillion, four hundred billion, fifteen million, two hundred twenty thousand, one hundred forty-five".