20084349171640 has 128 divisors (see below), whose sum is σ = 51862298664960. Its totient is φ = 6942413136384.

The previous prime is 20084349171613. The next prime is 20084349171641. The reversal of 20084349171640 is 4617194348002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084349171641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17302704 + ... + 18426943.

It is an arithmetic number, because the mean of its divisors is an integer number (405174208320).

Almost surely, 2^{20084349171640} is an apocalyptic number.

20084349171640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20084349171640 is an abundant number, since it is smaller than the sum of its proper divisors (31777949493320).

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

20084349171640 is a wasteful number, since it uses less digits than its factorization.

20084349171640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35729741 (or 35729737 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 20084349171640 in words is "twenty trillion, eighty-four billion, three hundred forty-nine million, one hundred seventy-one thousand, six hundred forty".