158225664 has 72 divisors (see below), whose sum is σ = 445919040. Its totient is φ = 49635328.

The previous prime is 158225663. The next prime is 158225677. The reversal of 158225664 is 466522851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158225663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6997 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (6193320).

Almost surely, 2^158225664 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 158225664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222959520).

158225664 is an abundant number, since it is smaller than the sum of its proper divisors (287693376).

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

158225664 is a wasteful number, since it uses less digits than its factorization.

158225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12155 (or 12141 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 158225664 is about 12578.7783190579. The cubic root of 158225664 is about 540.8692720806.

The spelling of 158225664 in words is "one hundred fifty-eight million, two hundred twenty-five thousand, six hundred sixty-four".