32166345555 has 12 divisors (see below), whose sum is σ = 55754999040. Its totient is φ = 17155384272.

The previous prime is 32166345553. The next prime is 32166345571. The reversal of 32166345555 is 55554366123.

32166345555 is a `hidden beast` number, since 3 + 2 + 1 + 6 + 634 + 5 + 5 + 5 + 5 = 666.

It is not a de Polignac number, because 32166345555 - 2¹ = 32166345553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 714807679 = 32166345555 / (3 + 2 + 1 + 6 + 6 + 3 + 4 + 5 + 5 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 32166345555.

It is not an unprimeable number, because it can be changed into a prime (32166345553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357403795 + ... + 357403884.

It is an arithmetic number, because the mean of its divisors is an integer number (4646249920).

Almost surely, 2^32166345555 is an apocalyptic number.

32166345555 is a deficient number, since it is larger than the sum of its proper divisors (23588653485).

32166345555 is a wasteful number, since it uses less digits than its factorization.

32166345555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714807690 (or 714807687 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

The spelling of 32166345555 in words is "thirty-two billion, one hundred sixty-six million, three hundred forty-five thousand, five hundred fifty-five".