40244504403161 has 4 divisors (see below), whose sum is σ = 41994265464192. Its totient is φ = 38494743342132.

The previous prime is 40244504403149. The next prime is 40244504403199. The reversal of 40244504403161 is 16130440544204.

40244504403161 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40244504403161 - 2¹⁴ = 40244504386777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244504453161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874880530481 + ... + 874880530526.

It is an arithmetic number, because the mean of its divisors is an integer number (10498566366048).

Almost surely, 2^{40244504403161} is an apocalyptic number.

It is an amenable number.

40244504403161 is a deficient number, since it is larger than the sum of its proper divisors (1749761061031).

40244504403161 is a wasteful number, since it uses less digits than its factorization.

40244504403161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749761061030.

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 40244504403161 its reverse (16130440544204), we get a palindrome (56374944947365).

The spelling of 40244504403161 in words is "forty trillion, two hundred forty-four billion, five hundred four million, four hundred three thousand, one hundred sixty-one".