228911025516 has 12 divisors (see below), whose sum is σ = 534125726232. Its totient is φ = 76303675168.

The previous prime is 228911025481. The next prime is 228911025527. The reversal of 228911025516 is 615520119822.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9537959385 + ... + 9537959408.

It is an arithmetic number, because the mean of its divisors is an integer number (44510477186).

Almost surely, 2^228911025516 is an apocalyptic number.

It is an amenable number.

228911025516 is an abundant number, since it is smaller than the sum of its proper divisors (305214700716).

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

228911025516 is a wasteful number, since it uses less digits than its factorization.

228911025516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19075918800 (or 19075918798 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 228911025516 in words is "two hundred twenty-eight billion, nine hundred eleven million, twenty-five thousand, five hundred sixteen".