40164164445 has 8 divisors (see below), whose sum is σ = 64262663136. Its totient is φ = 21420887696.

The previous prime is 40164164399. The next prime is 40164164449. The reversal of 40164164445 is 54446146104.

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

It is a cyclic number.

It is not a de Polignac number, because 40164164445 - 2⁹ = 40164163933 is a prime.

It is a super-2 number, since 2×40164164445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40164164449) 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 7 ways as a sum of consecutive naturals, for example, 1338805467 + ... + 1338805496.

It is an arithmetic number, because the mean of its divisors is an integer number (8032832892).

Almost surely, 2^40164164445 is an apocalyptic number.

It is an amenable number.

40164164445 is a deficient number, since it is larger than the sum of its proper divisors (24098498691).

40164164445 is a wasteful number, since it uses less digits than its factorization.

40164164445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677610971.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 40164164445 in words is "forty billion, one hundred sixty-four million, one hundred sixty-four thousand, four hundred forty-five".