228687683616 has 180 divisors, whose sum is σ = 782370947358. Its totient is φ = 65339301888.

The previous prime is 228687683599. The next prime is 228687683629. The reversal of 228687683616 is 616386786822.

228687683616 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 8 + 7 + 6 + 8 + 3 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 222780224016 + 5907459600 = 471996^2 + 76860^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 773281 + ... + 1027296.

Almost surely, 2^228687683616 is an apocalyptic number.

It is an amenable number.

228687683616 is an abundant number, since it is smaller than the sum of its proper divisors (553683263742).

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

228687683616 is a wasteful number, since it uses less digits than its factorization.

228687683616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800613 (or 1800589 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 228687683616 in words is "two hundred twenty-eight billion, six hundred eighty-seven million, six hundred eighty-three thousand, six hundred sixteen".