40006704066 has 64 divisors (see below), whose sum is σ = 92785145088. Its totient is φ = 11263131648.

The previous prime is 40006704053. The next prime is 40006704103. The reversal of 40006704066 is 66040760004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3529440 + ... + 3540756.

It is an arithmetic number, because the mean of its divisors is an integer number (1449767892).

Almost surely, 2^40006704066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40006704066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46392572544).

40006704066 is an abundant number, since it is smaller than the sum of its proper divisors (52778441022).

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

40006704066 is a wasteful number, since it uses less digits than its factorization.

40006704066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12555.

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 40006704066 in words is "forty billion, six million, seven hundred four thousand, sixty-six".