41556168901 has 4 divisors (see below), whose sum is σ = 44752797292. Its totient is φ = 38359540512.

The previous prime is 41556168893. The next prime is 41556168911. The reversal of 41556168901 is 10986165514.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3071930625 + 38484238276 = 55425^2 + 196174^2 .

It is a cyclic number.

It is not a de Polignac number, because 41556168901 - 2³ = 41556168893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41556168911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598314176 + ... + 1598314201.

It is an arithmetic number, because the mean of its divisors is an integer number (11188199323).

Almost surely, 2^41556168901 is an apocalyptic number.

It is an amenable number.

41556168901 is a deficient number, since it is larger than the sum of its proper divisors (3196628391).

41556168901 is a wasteful number, since it uses less digits than its factorization.

41556168901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196628390.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 41556168901 in words is "forty-one billion, five hundred fifty-six million, one hundred sixty-eight thousand, nine hundred one".