20748148548175 has 24 divisors (see below), whose sum is σ = 27084759004160. Its totient is φ = 15723190908000.

The previous prime is 20748148547993. The next prime is 20748148548191. The reversal of 20748148548175 is 57184584184702.

It is not a de Polignac number, because 20748148548175 - 2²¹ = 20748146451023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1960084 + ... + 6733366.

Almost surely, 2^{20748148548175} is an apocalyptic number.

20748148548175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20748148548175 is a deficient number, since it is larger than the sum of its proper divisors (6336610455985).

20748148548175 is a wasteful number, since it uses less digits than its factorization.

20748148548175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782463 (or 4782458 counting only the distinct ones).

The product of its (nonzero) digits is 80281600, while the sum is 64.

The spelling of 20748148548175 in words is "twenty trillion, seven hundred forty-eight billion, one hundred forty-eight million, five hundred forty-eight thousand, one hundred seventy-five".