32640206692 has 24 divisors (see below), whose sum is σ = 57387087576. Its totient is φ = 16243949568.

The previous prime is 32640206689. The next prime is 32640206693. The reversal of 32640206692 is 29660204623.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2910170916 + 29730035776 = 53946^2 + 172424^2 .

It is not an unprimeable number, because it can be changed into a prime (32640206693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3440868 + ... + 3450340.

It is an arithmetic number, because the mean of its divisors is an integer number (2391128649).

Almost surely, 2^32640206692 is an apocalyptic number.

It is an amenable number.

32640206692 is a deficient number, since it is larger than the sum of its proper divisors (24746880884).

32640206692 is a wasteful number, since it uses less digits than its factorization.

32640206692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13407 (or 13405 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 32640206692 in words is "thirty-two billion, six hundred forty million, two hundred six thousand, six hundred ninety-two".