40664866752 has 70 divisors (see below), whose sum is σ = 120543419568. Its totient is φ = 13554953856.

The previous prime is 40664866741. The next prime is 40664866763. The reversal of 40664866752 is 25766846604.

40664866752 is a `hidden beast` number, since 40 + 66 + 486 + 67 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (40664866741) and next prime (40664866763).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 3916968 + ... + 3927335.

Almost surely, 2^40664866752 is an apocalyptic number.

It is an amenable number.

40664866752 is an abundant number, since it is smaller than the sum of its proper divisors (79878552816).

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

40664866752 is an equidigital number, since it uses as much as digits as its factorization.

40664866752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844327 (or 7844308 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 40664866752 in words is "forty billion, six hundred sixty-four million, eight hundred sixty-six thousand, seven hundred fifty-two".