40020564161722 has 8 divisors (see below), whose sum is σ = 60625211057172. Its totient is φ = 19812160476000.

The previous prime is 40020564161713. The next prime is 40020564161723. The reversal of 40020564161722 is 22716146502004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39853602846841 + 166961314881 = 6312971^2 + 408609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40020564161723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99060802179 + ... + 99060802582.

Almost surely, 2^{40020564161722} is an apocalyptic number.

40020564161722 is a deficient number, since it is larger than the sum of its proper divisors (20604646895450).

40020564161722 is a wasteful number, since it uses less digits than its factorization.

40020564161722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198121604864.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 40020564161722 in words is "forty trillion, twenty billion, five hundred sixty-four million, one hundred sixty-one thousand, seven hundred twenty-two".