20425205551152 has 20 divisors (see below), whose sum is σ = 52765114340600. Its totient is φ = 6808401850368.

The previous prime is 20425205551133. The next prime is 20425205551181. The reversal of 20425205551152 is 25115550252402.

It is a self number, because there is not a number n which added to its sum of digits gives 20425205551152.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 212762557777 + ... + 212762557872.

It is an arithmetic number, because the mean of its divisors is an integer number (2638255717030).

Almost surely, 2^{20425205551152} is an apocalyptic number.

It is an amenable number.

20425205551152 is an abundant number, since it is smaller than the sum of its proper divisors (32339908789448).

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

20425205551152 is a wasteful number, since it uses less digits than its factorization.

20425205551152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425525115660 (or 425525115654 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 20425205551152 in words is "twenty trillion, four hundred twenty-five billion, two hundred five million, five hundred fifty-one thousand, one hundred fifty-two".