20084349171672 has 64 divisors (see below), whose sum is σ = 59071615221600. Its totient is φ = 6300972288000.

The previous prime is 20084349171661. The next prime is 20084349171697. The reversal of 20084349171672 is 27617194348002.

20084349171672 is a `hidden beast` number, since 2 + 0 + 0 + 84 + 3 + 491 + 7 + 1 + 6 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2734793329 + ... + 2734800672.

Almost surely, 2^{20084349171672} is an apocalyptic number.

It is an amenable number.

20084349171672 is an abundant number, since it is smaller than the sum of its proper divisors (38987266049928).

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

20084349171672 is a wasteful number, since it uses less digits than its factorization.

20084349171672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469594033 (or 5469594023 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 20084349171672 in words is "twenty trillion, eighty-four billion, three hundred forty-nine million, one hundred seventy-one thousand, six hundred seventy-two".