55632553331661 has 24 divisors (see below), whose sum is σ = 85233214191840. Its totient is φ = 34868133050400.

The previous prime is 55632553331647. The next prime is 55632553331717. The reversal of 55632553331661 is 16613335523655.

55632553331661 is a `hidden beast` number, since 5 + 5 + 6 + 32 + 5 + 533 + 3 + 16 + 61 = 666.

It is not a de Polignac number, because 55632553331661 - 2⁹ = 55632553331149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55632553331598 and 55632553331607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55632553331611) 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, 1241720230 + ... + 1241765031.

It is an arithmetic number, because the mean of its divisors is an integer number (3551383924660).

Almost surely, 2^{55632553331661} is an apocalyptic number.

It is an amenable number.

55632553331661 is a deficient number, since it is larger than the sum of its proper divisors (29600660860179).

55632553331661 is a wasteful number, since it uses less digits than its factorization.

55632553331661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483485417 (or 2483485414 counting only the distinct ones).

The product of its digits is 21870000, while the sum is 54.

The spelling of 55632553331661 in words is "fifty-five trillion, six hundred thirty-two billion, five hundred fifty-three million, three hundred thirty-one thousand, six hundred sixty-one".