20305340055320 has 32 divisors (see below), whose sum is σ = 48374486604000. Its totient is φ = 7644363314688.

The previous prime is 20305340055313. The next prime is 20305340055359. The reversal of 20305340055320 is 2355004350302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14930396420 + ... + 14930397779.

It is an arithmetic number, because the mean of its divisors is an integer number (1511702706375).

Almost surely, 2^{20305340055320} is an apocalyptic number.

20305340055320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20305340055320 is an abundant number, since it is smaller than the sum of its proper divisors (28069146548680).

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

20305340055320 is a wasteful number, since it uses less digits than its factorization.

20305340055320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29860794227 (or 29860794223 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 20305340055320 in words is "twenty trillion, three hundred five billion, three hundred forty million, fifty-five thousand, three hundred twenty".