228555499748940 has 288 divisors, whose sum is σ = 890780410618560. Its totient is φ = 48222698775552.

The previous prime is 228555499748909. The next prime is 228555499748963. The reversal of 228555499748940 is 49847994555822.

228555499748940 is a `hidden beast` number, since 2 + 2 + 8 + 5 + 5 + 5 + 4 + 9 + 97 + 489 + 40 = 666.

It is a super-2 number, since 2×228555499748940² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228555499748940.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 331878097 + ... + 332566056.

It is an arithmetic number, because the mean of its divisors is an integer number (3092987536870).

Almost surely, 2^{228555499748940} is an apocalyptic number.

228555499748940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228555499748940 is an abundant number, since it is smaller than the sum of its proper divisors (662224910869620).

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

228555499748940 is a wasteful number, since it uses less digits than its factorization.

228555499748940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664444198 (or 664444183 counting only the distinct ones).

The product of its (nonzero) digits is 10450944000, while the sum is 81.

The spelling of 228555499748940 in words is "two hundred twenty-eight trillion, five hundred fifty-five billion, four hundred ninety-nine million, seven hundred forty-eight thousand, nine hundred forty".