228695918548720 has 80 divisors (see below), whose sum is σ = 627280233781248. Its totient is φ = 75880673429760.

The previous prime is 228695918548711. The next prime is 228695918548763. The reversal of 228695918548720 is 27845819596822.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6586846654 + ... + 6586881373.

Almost surely, 2^{228695918548720} is an apocalyptic number.

228695918548720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228695918548720 is an abundant number, since it is smaller than the sum of its proper divisors (398584315232528).

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

228695918548720 is a wasteful number, since it uses less digits than its factorization.

228695918548720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13173728078 (or 13173728072 counting only the distinct ones).

The product of its (nonzero) digits is 1393459200, while the sum is 76.

The spelling of 228695918548720 in words is "two hundred twenty-eight trillion, six hundred ninety-five billion, nine hundred eighteen million, five hundred forty-eight thousand, seven hundred twenty".