228658882816 has 144 divisors (see below), whose sum is σ = 565209038464. Its totient is φ = 89902006272.

The previous prime is 228658882807. The next prime is 228658882819. The reversal of 228658882816 is 618288856822.

It is a super-2 number, since 2×228658882816² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (228658882819) 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, 3767140 + ... + 3827356.

Almost surely, 2^228658882816 is an apocalyptic number.

228658882816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228658882816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282604519232).

228658882816 is an abundant number, since it is smaller than the sum of its proper divisors (336550155648).

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

228658882816 is a wasteful number, since it uses less digits than its factorization.

228658882816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60416 (or 60402 counting only the distinct ones).

The product of its digits is 47185920, while the sum is 64.

The spelling of 228658882816 in words is "two hundred twenty-eight billion, six hundred fifty-eight million, eight hundred eighty-two thousand, eight hundred sixteen".