8156345232 has 160 divisors (see below), whose sum is σ = 25727718400. Its totient is φ = 2174667264.

The previous prime is 8156345203. The next prime is 8156345237. The reversal of 8156345232 is 2325436518.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8156345237) 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, 418194 + ... + 437262.

It is an arithmetic number, because the mean of its divisors is an integer number (160798240).

Almost surely, 2^8156345232 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 8156345232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12863859200).

8156345232 is an abundant number, since it is smaller than the sum of its proper divisors (17571373168).

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

8156345232 is a wasteful number, since it uses less digits than its factorization.

8156345232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19173 (or 19167 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 8156345232 is about 90312.4865785457. The cubic root of 8156345232 is about 2012.9448045892.

The spelling of 8156345232 in words is "eight billion, one hundred fifty-six million, three hundred forty-five thousand, two hundred thirty-two".