20266022404240 has 40 divisors (see below), whose sum is σ = 49167132619968. Its totient is φ = 7753956397440.

The previous prime is 20266022404157. The next prime is 20266022404279. The reversal of 20266022404240 is 4240422066202.

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

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20266022404196 and 20266022404205.

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, 5507069466 + ... + 5507073145.

Almost surely, 2^{20266022404240} is an apocalyptic number.

20266022404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20266022404240 is an abundant number, since it is smaller than the sum of its proper divisors (28901110215728).

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

20266022404240 is a wasteful number, since it uses less digits than its factorization.

20266022404240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11014142647 (or 11014142641 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 20266022404240 in words is "twenty trillion, two hundred sixty-six billion, twenty-two million, four hundred four thousand, two hundred forty".