40636666332 has 24 divisors (see below), whose sum is σ = 105354320400. Its totient is φ = 13545555408.

The previous prime is 40636666321. The next prime is 40636666337. The reversal of 40636666332 is 23366663604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40636666337) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 188132607 + ... + 188132822.

It is an arithmetic number, because the mean of its divisors is an integer number (4389763350).

Almost surely, 2^40636666332 is an apocalyptic number.

It is an amenable number.

40636666332 is an abundant number, since it is smaller than the sum of its proper divisors (64717654068).

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

40636666332 is a wasteful number, since it uses less digits than its factorization.

40636666332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376265442 (or 376265434 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 45.

The spelling of 40636666332 in words is "forty billion, six hundred thirty-six million, six hundred sixty-six thousand, three hundred thirty-two".