229156376072 has 108 divisors (see below), whose sum is σ = 477094173255. Its totient is φ = 103140475776.

The previous prime is 229156376069. The next prime is 229156376089. The reversal of 229156376072 is 270673651922.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 322346116 + 228834029956 = 17954^2 + 478366^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338494.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229156376072.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 827279198 + ... + 827279474.

Almost surely, 2^229156376072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229156376072

229156376072 is an abundant number, since it is smaller than the sum of its proper divisors (247937797183).

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

229156376072 is an equidigital number, since it uses as much as digits as its factorization.

229156376072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

Multiplying 229156376072 by its sum of digits (50), we get a square (11457818803600 = 3384940²).

The spelling of 229156376072 in words is "two hundred twenty-nine billion, one hundred fifty-six million, three hundred seventy-six thousand, seventy-two".