20425205551120 has 40 divisors (see below), whose sum is σ = 49988003063040. Its totient is φ = 7740077892480.

The previous prime is 20425205551099. The next prime is 20425205551133. The reversal of 20425205551120 is 2115550252402.

It is a tau number, because it is divible by the number of its divisors (40).

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, 6718816096 + ... + 6718819135.

It is an arithmetic number, because the mean of its divisors is an integer number (1249700076576).

Almost surely, 2^{20425205551120} is an apocalyptic number.

20425205551120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20425205551120 is an abundant number, since it is smaller than the sum of its proper divisors (29562797511920).

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

20425205551120 is a wasteful number, since it uses less digits than its factorization.

20425205551120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437635263 (or 13437635257 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 20425205551120 in words is "twenty trillion, four hundred twenty-five billion, two hundred five million, five hundred fifty-one thousand, one hundred twenty".