20352450226240 has 56 divisors (see below), whose sum is σ = 52870115028672. Its totient is φ = 7400890990080.

The previous prime is 20352450226231. The next prime is 20352450226243. The reversal of 20352450226240 is 4262205425302.

It is a self number, because there is not a number n which added to its sum of digits gives 20352450226240.

It is not an unprimeable number, because it can be changed into a prime (20352450226243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2890969524 + ... + 2890976563.

Almost surely, 2^{20352450226240} is an apocalyptic number.

20352450226240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352450226240 is an abundant number, since it is smaller than the sum of its proper divisors (32517664802432).

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

20352450226240 is a wasteful number, since it uses less digits than its factorization.

20352450226240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781946115 (or 5781946105 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 20352450226240 in words is "twenty trillion, three hundred fifty-two billion, four hundred fifty million, two hundred twenty-six thousand, two hundred forty".