32320229985 has 40 divisors (see below), whose sum is σ = 57952453416. Its totient is φ = 17232860160.

The previous prime is 32320229971. The next prime is 32320229987. The reversal of 32320229985 is 58992202323.

32320229985 is a `hidden beast` number, since 32 + 320 + 2 + 299 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5868785664 + 26451444321 = 76608^2 + 162639^2 .

It is not a de Polignac number, because 32320229985 - 2¹⁶ = 32320164449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32320229985.

It is not an unprimeable number, because it can be changed into a prime (32320229987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1960497 + ... + 1976913.

Almost surely, 2^32320229985 is an apocalyptic number.

It is an amenable number.

32320229985 is a deficient number, since it is larger than the sum of its proper divisors (25632223431).

32320229985 is a wasteful number, since it uses less digits than its factorization.

32320229985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21295 (or 21286 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 32320229985 in words is "thirty-two billion, three hundred twenty million, two hundred twenty-nine thousand, nine hundred eighty-five".