55027664380380 has 48 divisors (see below), whose sum is σ = 163140840283680. Its totient is φ = 13810864785408.

The previous prime is 55027664380369. The next prime is 55027664380387. The reversal of 55027664380380 is 8308346672055.

It is a self number, because there is not a number n which added to its sum of digits gives 55027664380380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027664380387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26974344265 + ... + 26974346304.

It is an arithmetic number, because the mean of its divisors is an integer number (3398767505910).

Almost surely, 2^{55027664380380} is an apocalyptic number.

It is an amenable number.

55027664380380 is an abundant number, since it is smaller than the sum of its proper divisors (108113175903300).

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

55027664380380 is a wasteful number, since it uses less digits than its factorization.

55027664380380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53948690598 (or 53948690596 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 57.

The spelling of 55027664380380 in words is "fifty-five trillion, twenty-seven billion, six hundred sixty-four million, three hundred eighty thousand, three hundred eighty".