20916475248 has 40 divisors (see below), whose sum is σ = 55777271296. Its totient is φ = 6747249600.

The previous prime is 20916475247. The next prime is 20916475271. The reversal of 20916475248 is 84257461902.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 20916475197 and 20916475206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20916475247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7026898 + ... + 7029873.

Almost surely, 2^20916475248 is an apocalyptic number.

It is an amenable number.

20916475248 is an abundant number, since it is smaller than the sum of its proper divisors (34860796048).

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

20916475248 is a wasteful number, since it uses less digits than its factorization.

20916475248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14056813 (or 14056807 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 20916475248 in words is "twenty billion, nine hundred sixteen million, four hundred seventy-five thousand, two hundred forty-eight".