55641494388672 has 42 divisors (see below), whose sum is σ = 159486297285848. Its totient is φ = 18547164796032.

The previous prime is 55641494388659. The next prime is 55641494388677. The reversal of 55641494388672 is 27688349414655.

55641494388672 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 1 + 49 + 438 + 86 + 72 = 666.

55641494388672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 55641494388672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55641494388677) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 48299907748 + ... + 48299908899.

Almost surely, 2^{55641494388672} is an apocalyptic number.

It is an amenable number.

55641494388672 is an abundant number, since it is smaller than the sum of its proper divisors (103844802897176).

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

55641494388672 is a wasteful number, since it uses less digits than its factorization.

55641494388672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96599816665 (or 96599816652 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 72.

The spelling of 55641494388672 in words is "fifty-five trillion, six hundred forty-one billion, four hundred ninety-four million, three hundred eighty-eight thousand, six hundred seventy-two".