32660216081 has 4 divisors (see below), whose sum is σ = 32672446464. Its totient is φ = 32647985700.

The previous prime is 32660216051. The next prime is 32660216101. The reversal of 32660216081 is 18061206623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32660216081 is a prime.

It is a super-3 number, since 3×32660216081³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32660216021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111185 + ... + 6116526.

It is an arithmetic number, because the mean of its divisors is an integer number (8168111616).

Almost surely, 2^32660216081 is an apocalyptic number.

It is an amenable number.

32660216081 is a deficient number, since it is larger than the sum of its proper divisors (12230383).

32660216081 is a wasteful number, since it uses less digits than its factorization.

32660216081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12230382.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 32660216081 in words is "thirty-two billion, six hundred sixty million, two hundred sixteen thousand, eighty-one".