229705132566 has 64 divisors (see below), whose sum is σ = 583667675136. Its totient is φ = 58627324800.

The previous prime is 229705132519. The next prime is 229705132577. The reversal of 229705132566 is 665231507922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6768645 + ... + 6802496.

It is an arithmetic number, because the mean of its divisors is an integer number (9119807424).

Almost surely, 2^229705132566 is an apocalyptic number.

229705132566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

229705132566 is an abundant number, since it is smaller than the sum of its proper divisors (353962542570).

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

229705132566 is a wasteful number, since it uses less digits than its factorization.

229705132566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13571197.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 229705132566 in words is "two hundred twenty-nine billion, seven hundred five million, one hundred thirty-two thousand, five hundred sixty-six".