40467168227161 has 9 divisors (see below), whose sum is σ = 43819567569981. Its totient is φ = 37354232796192.

The previous prime is 40467168227153. The next prime is 40467168227177. The reversal of 40467168227161 is 16172286176404.

It is a happy number.

The square root of 40467168227161 is 6361381.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4877114479561 + 35590053747600 = 2208419^2 + 5965740^2 .

It is not a de Polignac number, because 40467168227161 - 2³ = 40467168227153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40467168227261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82453285 + ... + 82942621.

It is an arithmetic number, because the mean of its divisors is an integer number (4868840841109).

Almost surely, 2^{40467168227161} is an apocalyptic number.

40467168227161 is the 6361381-st square number.

40467168227161 is the 3180691-st centered octagonal number.

It is an amenable number.

40467168227161 is a deficient number, since it is larger than the sum of its proper divisors (3352399342820).

40467168227161 is an frugal number, since it uses more digits than its factorization.

40467168227161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978700 (or 489350 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 40467168227161 in words is "forty trillion, four hundred sixty-seven billion, one hundred sixty-eight million, two hundred twenty-seven thousand, one hundred sixty-one".