43665620132 has 12 divisors (see below), whose sum is σ = 76424487216. Its totient is φ = 21830052360.

The previous prime is 43665620107. The next prime is 43665620161. The reversal of 43665620132 is 23102656634.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 653594 + ... + 717297.

It is an arithmetic number, because the mean of its divisors is an integer number (6368707268).

Almost surely, 2^43665620132 is an apocalyptic number.

It is an amenable number.

43665620132 is a deficient number, since it is larger than the sum of its proper divisors (32758867084).

43665620132 is a wasteful number, since it uses less digits than its factorization.

43665620132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378858 (or 1378856 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 43665620132 in words is "forty-three billion, six hundred sixty-five million, six hundred twenty thousand, one hundred thirty-two".