20020842608040 has 96 divisors (see below), whose sum is σ = 65139164064000. Its totient is φ = 5333030801280.

The previous prime is 20020842608009. The next prime is 20020842608111. The reversal of 20020842608040 is 4080624802002.

It is a happy number.

20020842608040 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 0 + 8 + 4 + 2 + 608 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20020842607986 and 20020842608004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30195340 + ... + 30851259.

It is an arithmetic number, because the mean of its divisors is an integer number (678532959000).

Almost surely, 2^{20020842608040} is an apocalyptic number.

20020842608040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020842608040 is an abundant number, since it is smaller than the sum of its proper divisors (45118321455960).

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

20020842608040 is a wasteful number, since it uses less digits than its factorization.

20020842608040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61047527 (or 61047520 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20020842608040 in words is "twenty trillion, twenty billion, eight hundred forty-two million, six hundred eight thousand, forty".