228915563520 has 176 divisors, whose sum is σ = 836768533248. Its totient is φ = 52323532800.

The previous prime is 228915563479. The next prime is 228915563521. The reversal of 228915563520 is 25365519822.

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

It is a self number, because there is not a number n which added to its sum of digits gives 228915563520.

It is not an unprimeable number, because it can be changed into a prime (228915563521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957006 + ... + 1172045.

Almost surely, 2^228915563520 is an apocalyptic number.

228915563520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228915563520 is an abundant number, since it is smaller than the sum of its proper divisors (607852969728).

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

228915563520 is a wasteful number, since it uses less digits than its factorization.

228915563520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129086 (or 2129068 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 228915563520 in words is "two hundred twenty-eight billion, nine hundred fifteen million, five hundred sixty-three thousand, five hundred twenty".