40020564161724 has 48 divisors (see below), whose sum is σ = 99480413182080. Its totient is φ = 12485806948800.

The previous prime is 40020564161723. The next prime is 40020564161761. The reversal of 40020564161724 is 42716146502004.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1057383427 + ... + 1057421274.

It is an arithmetic number, because the mean of its divisors is an integer number (2072508607960).

Almost surely, 2^{40020564161724} is an apocalyptic number.

It is an amenable number.

40020564161724 is an abundant number, since it is smaller than the sum of its proper divisors (59459849020356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40020564161724 is a wasteful number, since it uses less digits than its factorization.

40020564161724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114804810 (or 2114804808 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 40020564161724 in words is "forty trillion, twenty billion, five hundred sixty-four million, one hundred sixty-one thousand, seven hundred twenty-four".