40052417161 has 3 divisors (see below), whose sum is σ = 40052617293. Its totient is φ = 40052217030.

The previous prime is 40052417159. The next prime is 40052417173. The reversal of 40052417161 is 16171425004.

The square root of 40052417161 is 200131.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 40052417161 - 2¹ = 40052417159 is a prime.

It is a super-2 number, since 2×40052417161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40052417131) 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 2 ways as a sum of consecutive naturals, for example, 100066 + ... + 300196.

It is an arithmetic number, because the mean of its divisors is an integer number (13350872431).

Almost surely, 2^40052417161 is an apocalyptic number.

40052417161 is the 200131-st square number.

40052417161 is the 100066-th centered octagonal number.

It is an amenable number.

40052417161 is a deficient number, since it is larger than the sum of its proper divisors (200132).

40052417161 is an frugal number, since it uses more digits than its factorization.

40052417161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400262 (or 200131 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 40052417161 in words is "forty billion, fifty-two million, four hundred seventeen thousand, one hundred sixty-one".