32904216561 has 8 divisors (see below), whose sum is σ = 43873139520. Its totient is φ = 21935718992.

The previous prime is 32904216551. The next prime is 32904216613. The reversal of 32904216561 is 16561240923.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32904216561 - 2¹³ = 32904208369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32904216551) 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, 201196 + ... + 326018.

It is an arithmetic number, because the mean of its divisors is an integer number (5484142440).

Almost surely, 2^32904216561 is an apocalyptic number.

It is an amenable number.

32904216561 is a deficient number, since it is larger than the sum of its proper divisors (10968922959).

32904216561 is a wasteful number, since it uses less digits than its factorization.

32904216561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212695.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 32904216561 in words is "thirty-two billion, nine hundred four million, two hundred sixteen thousand, five hundred sixty-one".