20169553248 has 72 divisors (see below), whose sum is σ = 61769268288. Its totient is φ = 6206015232.

The previous prime is 20169553241. The next prime is 20169553291. The reversal of 20169553248 is 84235596102.

20169553248 is a `hidden beast` number, since 20 + 1 + 6 + 95 + 532 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20169553241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2689840 + ... + 2697327.

It is an arithmetic number, because the mean of its divisors is an integer number (857906504).

Almost surely, 2^20169553248 is an apocalyptic number.

It is an amenable number.

20169553248 is an abundant number, since it is smaller than the sum of its proper divisors (41599715040).

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

20169553248 is a wasteful number, since it uses less digits than its factorization.

20169553248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387196 (or 5387185 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 20169553248 in words is "twenty billion, one hundred sixty-nine million, five hundred fifty-three thousand, two hundred forty-eight".