43536216666 has 32 divisors (see below), whose sum is σ = 90212990976. Its totient is φ = 13992102000.

The previous prime is 43536216653. The next prime is 43536216667. The reversal of 43536216666 is 66661263534.

It is not an unprimeable number, because it can be changed into a prime (43536216667) 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 15 ways as a sum of consecutive naturals, for example, 381450 + ... + 482261.

It is an arithmetic number, because the mean of its divisors is an integer number (2819155968).

Almost surely, 2^43536216666 is an apocalyptic number.

43536216666 is an abundant number, since it is smaller than the sum of its proper divisors (46676774310).

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

43536216666 is a wasteful number, since it uses less digits than its factorization.

43536216666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864018.

The product of its digits is 2799360, while the sum is 48.

The spelling of 43536216666 in words is "forty-three billion, five hundred thirty-six million, two hundred sixteen thousand, six hundred sixty-six".