20562117982 has 8 divisors (see below), whose sum is σ = 35249345136. Its totient is φ = 8812336272.

The previous prime is 20562117959. The next prime is 20562118033. The reversal of 20562117982 is 28971126502.

20562117982 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×20562117982³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734361343 + ... + 734361370.

It is an arithmetic number, because the mean of its divisors is an integer number (4406168142).

Almost surely, 2^20562117982 is an apocalyptic number.

20562117982 is a deficient number, since it is larger than the sum of its proper divisors (14687227154).

20562117982 is a wasteful number, since it uses less digits than its factorization.

20562117982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468722722.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 20562117982 in words is "twenty billion, five hundred sixty-two million, one hundred seventeen thousand, nine hundred eighty-two".