158533381728016 has 15 divisors (see below), whose sum is σ = 307158524678343. Its totient is φ = 79266665682000.

The previous prime is 158533381728011. The next prime is 158533381728037. The reversal of 158533381728016 is 610827183335851.

The square root of 158533381728016 is 12591004.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158533381728011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 48790141 + ... + 51937891.

Almost surely, 2^{158533381728016} is an apocalyptic number.

158533381728016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

158533381728016 is the 12591004-th square number.

It is an amenable number.

158533381728016 is a deficient number, since it is larger than the sum of its proper divisors (148625142950327).

158533381728016 is an frugal number, since it uses more digits than its factorization.

158533381728016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295510 (or 3147753 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 158533381728016 in words is "one hundred fifty-eight trillion, five hundred thirty-three billion, three hundred eighty-one million, seven hundred twenty-eight thousand, sixteen".