40466552569 has 3 divisors (see below), whose sum is σ = 40466753733. Its totient is φ = 40466351406.

The previous prime is 40466552563. The next prime is 40466552587. The reversal of 40466552569 is 96525566404.

The square root of 40466552569 is 201163.

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 40466552569 - 2¹⁷ = 40466421497 is a prime.

It is a super-2 number, since 2×40466552569² (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 (40466552563) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 100582 + ... + 301744.

It is an arithmetic number, because the mean of its divisors is an integer number (13488917911).

Almost surely, 2^40466552569 is an apocalyptic number.

40466552569 is the 201163-rd square number.

40466552569 is the 100582-nd centered octagonal number.

It is an amenable number.

40466552569 is a deficient number, since it is larger than the sum of its proper divisors (201164).

40466552569 is an frugal number, since it uses more digits than its factorization.

40466552569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402326 (or 201163 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 40466552569 in words is "forty billion, four hundred sixty-six million, five hundred fifty-two thousand, five hundred sixty-nine".