32554455661 has 64 divisors (see below), whose sum is σ = 43182125056. Its totient is φ = 23850547200.

The previous prime is 32554455649. The next prime is 32554455683. The reversal of 32554455661 is 16655445523.

It is a 6-Lehmer number, since φ(32554455661) divides (32554455661-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 32554455661 - 2¹³ = 32554447469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32554455641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6364441 + ... + 6369553.

It is an arithmetic number, because the mean of its divisors is an integer number (674720704).

It is a Poulet number, since it divides 2^32554455660-1.

Almost surely, 2^32554455661 is an apocalyptic number.

32554455661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32554455661 is a deficient number, since it is larger than the sum of its proper divisors (10627669395).

32554455661 is a wasteful number, since it uses less digits than its factorization.

32554455661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262.

The product of its digits is 2160000, while the sum is 46.

The spelling of 32554455661 in words is "thirty-two billion, five hundred fifty-four million, four hundred fifty-five thousand, six hundred sixty-one".