32663255661 has 24 divisors (see below), whose sum is σ = 50145625920. Its totient is φ = 20429127936.

The previous prime is 32663255659. The next prime is 32663255687. The reversal of 32663255661 is 16655236623.

32663255661 is a `hidden beast` number, since 3 + 2 + 6 + 6 + 32 + 556 + 61 = 666.

It is not a de Polignac number, because 32663255661 - 2¹ = 32663255659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32663255461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909636 + ... + 944861.

It is an arithmetic number, because the mean of its divisors is an integer number (2089401080).

Almost surely, 2^32663255661 is an apocalyptic number.

It is an amenable number.

32663255661 is a deficient number, since it is larger than the sum of its proper divisors (17482370259).

32663255661 is a wasteful number, since it uses less digits than its factorization.

32663255661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854625 (or 1854622 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 32663255661 in words is "thirty-two billion, six hundred sixty-three million, two hundred fifty-five thousand, six hundred sixty-one".