27550079960520 has 128 divisors (see below), whose sum is σ = 89009989286400. Its totient is φ = 6781402819584.

The previous prime is 27550079960503. The next prime is 27550079960527. The reversal of 27550079960520 is 2506997005572.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27550079960527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77493489 + ... + 77848191.

It is an arithmetic number, because the mean of its divisors is an integer number (695390541300).

Almost surely, 2^{27550079960520} is an apocalyptic number.

27550079960520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27550079960520 is an abundant number, since it is smaller than the sum of its proper divisors (61459909325880).

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

27550079960520 is a wasteful number, since it uses less digits than its factorization.

27550079960520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404519 (or 404515 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 57.

The spelling of 27550079960520 in words is "twenty-seven trillion, five hundred fifty billion, seventy-nine million, nine hundred sixty thousand, five hundred twenty".