245554055431220 has 12 divisors (see below), whose sum is σ = 515663516405604. Its totient is φ = 98221622172480.

The previous prime is 245554055431211. The next prime is 245554055431249. The reversal of 245554055431220 is 22134550455542.

It can be written as a sum of positive squares in 2 ways, for example, as 66104347289764 + 179449708141456 = 8130458^2 + 13395884^2 .

It is a super-3 number, since 3×245554055431220³ (a number of 44 digits) contains 333 as substring.

It is a congruent 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, 6138851385761 + ... + 6138851385800.

It is an arithmetic number, because the mean of its divisors is an integer number (42971959700467).

Almost surely, 2^{245554055431220} is an apocalyptic number.

245554055431220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245554055431220 is an abundant number, since it is smaller than the sum of its proper divisors (270109460974384).

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

245554055431220 is a wasteful number, since it uses less digits than its factorization.

245554055431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12277702771570 (or 12277702771568 counting only the distinct ones).

The product of its (nonzero) digits is 4800000, while the sum is 47.

The spelling of 245554055431220 in words is "two hundred forty-five trillion, five hundred fifty-four billion, fifty-five million, four hundred thirty-one thousand, two hundred twenty".