40164206812 has 24 divisors (see below), whose sum is σ = 71498170800. Its totient is φ = 19736343936.

The previous prime is 40164206809. The next prime is 40164206813. The reversal of 40164206812 is 21860246104.

It is a super-2 number, since 2×40164206812² (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 (40164206813) 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, 925864 + ... + 968272.

It is an arithmetic number, because the mean of its divisors is an integer number (2979090450).

Almost surely, 2^40164206812 is an apocalyptic number.

It is an amenable number.

40164206812 is a deficient number, since it is larger than the sum of its proper divisors (31333963988).

40164206812 is a wasteful number, since it uses less digits than its factorization.

40164206812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46485 (or 46483 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 40164206812 in words is "forty billion, one hundred sixty-four million, two hundred six thousand, eight hundred twelve".