228772678160 has 80 divisors (see below), whose sum is σ = 592563792240. Its totient is φ = 81557145600.

The previous prime is 228772678151. The next prime is 228772678181. The reversal of 228772678160 is 61876277822.

It can be written as a sum of positive squares in 8 ways, for example, as 1602240784 + 227170437376 = 40028^2 + 476624^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 228772678096 and 228772678105.

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, 3762491 + ... + 3822810.

It is an arithmetic number, because the mean of its divisors is an integer number (7407047403).

Almost surely, 2^228772678160 is an apocalyptic number.

228772678160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228772678160 is an abundant number, since it is smaller than the sum of its proper divisors (363791114080).

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

228772678160 is a wasteful number, since it uses less digits than its factorization.

228772678160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585356 (or 7585350 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 228772678160 in words is "two hundred twenty-eight billion, seven hundred seventy-two million, six hundred seventy-eight thousand, one hundred sixty".