20748148548174 has 96 divisors (see below), whose sum is σ = 48144876159744. Its totient is φ = 6441658565760.

The previous prime is 20748148547993. The next prime is 20748148548191. The reversal of 20748148548174 is 47184584184702.

20748148548174 is a `hidden beast` number, since 2 + 0 + 7 + 4 + 8 + 1 + 4 + 85 + 481 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7708809 + ... + 10045995.

It is an arithmetic number, because the mean of its divisors is an integer number (501509126664).

Almost surely, 2^{20748148548174} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20748148548174, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24072438079872).

20748148548174 is an abundant number, since it is smaller than the sum of its proper divisors (27396727611570).

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

20748148548174 is a wasteful number, since it uses less digits than its factorization.

20748148548174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337782 (or 2337779 counting only the distinct ones).

The product of its (nonzero) digits is 64225280, while the sum is 63.

The spelling of 20748148548174 in words is "twenty trillion, seven hundred forty-eight billion, one hundred forty-eight million, five hundred forty-eight thousand, one hundred seventy-four".