20402184160 has 48 divisors (see below), whose sum is σ = 51035470416. Its totient is φ = 7680821248.

The previous prime is 20402184151. The next prime is 20402184167. The reversal of 20402184160 is 6148120402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402184167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747682 + ... + 3753121.

It is an arithmetic number, because the mean of its divisors is an integer number (1063238967).

Almost surely, 2^20402184160 is an apocalyptic number.

20402184160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20402184160 is an abundant number, since it is smaller than the sum of its proper divisors (30633286256).

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

20402184160 is a wasteful number, since it uses less digits than its factorization.

20402184160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500835 (or 7500827 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 20402184160 in words is "twenty billion, four hundred two million, one hundred eighty-four thousand, one hundred sixty".