55621662533634 has 8 divisors (see below), whose sum is σ = 111243325067280. Its totient is φ = 18540554177876.

The previous prime is 55621662533629. The next prime is 55621662533659. The reversal of 55621662533634 is 43633526612655.

55621662533634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

55621662533634 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4635138544464 + ... + 4635138544475.

It is an arithmetic number, because the mean of its divisors is an integer number (13905415633410).

Almost surely, 2^{55621662533634} is an apocalyptic number.

55621662533634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55621662533634 is a wasteful number, since it uses less digits than its factorization.

55621662533634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270277088944.

The product of its digits is 69984000, while the sum is 57.

The spelling of 55621662533634 in words is "fifty-five trillion, six hundred twenty-one billion, six hundred sixty-two million, five hundred thirty-three thousand, six hundred thirty-four".