228666692532 has 24 divisors (see below), whose sum is σ = 533755449472. Its totient is φ = 76193693880.

The previous prime is 228666692479. The next prime is 228666692563. The reversal of 228666692532 is 235296666822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85609557 + ... + 85612227.

Almost surely, 2^228666692532 is an apocalyptic number.

It is an amenable number.

228666692532 is an abundant number, since it is smaller than the sum of its proper divisors (305088756940).

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

228666692532 is an frugal number, since it uses more digits than its factorization.

228666692532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020 (or 2676 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 57.

The spelling of 228666692532 in words is "two hundred twenty-eight billion, six hundred sixty-six million, six hundred ninety-two thousand, five hundred thirty-two".