20474870655040 has 56 divisors (see below), whose sum is σ = 48756567025152. Its totient is φ = 8189817024000.

The previous prime is 20474870655037. The next prime is 20474870655049. The reversal of 20474870655040 is 4055607847402.

It is not an unprimeable number, because it can be changed into a prime (20474870655049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20881047 + ... + 21839593.

It is an arithmetic number, because the mean of its divisors is an integer number (870652982592).

Almost surely, 2^{20474870655040} is an apocalyptic number.

20474870655040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20474870655040 is an abundant number, since it is smaller than the sum of its proper divisors (28281696370112).

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

20474870655040 is an equidigital number, since it uses as much as digits as its factorization.

20474870655040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025315 (or 1025305 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 52.

The spelling of 20474870655040 in words is "twenty trillion, four hundred seventy-four billion, eight hundred seventy million, six hundred fifty-five thousand, forty".