20040736180 has 24 divisors (see below), whose sum is σ = 42320668320. Its totient is φ = 7971509280.

The previous prime is 20040736147. The next prime is 20040736187. The reversal of 20040736180 is 8163704002.

It is a super-2 number, since 2×20040736180² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040736187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2795406 + ... + 2802565.

It is an arithmetic number, because the mean of its divisors is an integer number (1763361180).

Almost surely, 2^20040736180 is an apocalyptic number.

20040736180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040736180 is an abundant number, since it is smaller than the sum of its proper divisors (22279932140).

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

20040736180 is a wasteful number, since it uses less digits than its factorization.

20040736180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598159 (or 5598157 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 20040736180 in words is "twenty billion, forty million, seven hundred thirty-six thousand, one hundred eighty".