20271417543240 has 64 divisors (see below), whose sum is σ = 60831341366400. Its totient is φ = 5404192346112.

The previous prime is 20271417543217. The next prime is 20271417543271. The reversal of 20271417543240 is 4234571417202.

It is a junction number, because it is equal to n+sod(n) for n = 20271417543192 and 20271417543201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23305497 + ... + 24159656.

It is an arithmetic number, because the mean of its divisors is an integer number (950489708850).

Almost surely, 2^{20271417543240} is an apocalyptic number.

20271417543240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20271417543240 is an abundant number, since it is smaller than the sum of its proper divisors (40559923823160).

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

20271417543240 is a wasteful number, since it uses less digits than its factorization.

20271417543240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47468726 (or 47468722 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 20271417543240 in words is "twenty trillion, two hundred seventy-one billion, four hundred seventeen million, five hundred forty-three thousand, two hundred forty".