229732159902 has 64 divisors (see below), whose sum is σ = 536985583104. Its totient is φ = 64165530240.

The previous prime is 229732159879. The next prime is 229732159907. The reversal of 229732159902 is 209951237922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229732159907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142548 + ... + 692664.

It is an arithmetic number, because the mean of its divisors is an integer number (8390399736).

Almost surely, 2^229732159902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229732159902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268492791552).

229732159902 is an abundant number, since it is smaller than the sum of its proper divisors (307253423202).

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

229732159902 is a wasteful number, since it uses less digits than its factorization.

229732159902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550353.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 229732159902 in words is "two hundred twenty-nine billion, seven hundred thirty-two million, one hundred fifty-nine thousand, nine hundred two".