32645601636 has 24 divisors (see below), whose sum is σ = 80653839840. Its totient is φ = 10241757312.

The previous prime is 32645601623. The next prime is 32645601641. The reversal of 32645601636 is 63610654623.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80013526 + ... + 80013933.

It is an arithmetic number, because the mean of its divisors is an integer number (3360576660).

Almost surely, 2^32645601636 is an apocalyptic number.

It is an amenable number.

32645601636 is an abundant number, since it is smaller than the sum of its proper divisors (48008238204).

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

32645601636 is a wasteful number, since it uses less digits than its factorization.

32645601636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160027483 (or 160027481 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 32645601636 in words is "thirty-two billion, six hundred forty-five million, six hundred one thousand, six hundred thirty-six".