20040015552120 has 96 divisors (see below), whose sum is σ = 65544891815520. Its totient is φ = 5309965889280.

The previous prime is 20040015552083. The next prime is 20040015552127. The reversal of 20040015552120 is 2125551004002.

20040015552120 is a `hidden beast` number, since 200 + 400 + 1 + 5 + 5 + 52 + 1 + 2 + 0 = 666.

It is a super-2 number, since 2×20040015552120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040015552127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177225996 + ... + 177339035.

It is an arithmetic number, because the mean of its divisors is an integer number (682759289745).

Almost surely, 2^{20040015552120} is an apocalyptic number.

20040015552120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040015552120 is an abundant number, since it is smaller than the sum of its proper divisors (45504876263400).

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

20040015552120 is a wasteful number, since it uses less digits than its factorization.

20040015552120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354565205 (or 354565198 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 20040015552120 its reverse (2125551004002), we get a palindrome (22165566556122).

The spelling of 20040015552120 in words is "twenty trillion, forty billion, fifteen million, five hundred fifty-two thousand, one hundred twenty".