32666223544 has 8 divisors (see below), whose sum is σ = 61249169160. Its totient is φ = 16333111768.

The previous prime is 32666223517. The next prime is 32666223553. The reversal of 32666223544 is 44532266623.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 32666223544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2041638964 + ... + 2041638979.

It is an arithmetic number, because the mean of its divisors is an integer number (7656146145).

Almost surely, 2^32666223544 is an apocalyptic number.

It is an amenable number.

32666223544 is a deficient number, since it is larger than the sum of its proper divisors (28582945616).

32666223544 is a wasteful number, since it uses less digits than its factorization.

32666223544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083277949 (or 4083277945 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The spelling of 32666223544 in words is "thirty-two billion, six hundred sixty-six million, two hundred twenty-three thousand, five hundred forty-four".