158017216 has 56 divisors (see below), whose sum is σ = 359578656. Its totient is φ = 67491840.

The previous prime is 158017183. The next prime is 158017219. The reversal of 158017216 is 612710851.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-4 number, since 4×158017216⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (158017219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233070 + ... + 233746.

Almost surely, 2^158017216 is an apocalyptic number.

158017216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158017216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179789328).

158017216 is an abundant number, since it is smaller than the sum of its proper divisors (201561440).

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

158017216 is an equidigital number, since it uses as much as digits as its factorization.

158017216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 158017216 is about 12570.4898870330. The cubic root of 158017216 is about 540.6316522553.

The spelling of 158017216 in words is "one hundred fifty-eight million, seventeen thousand, two hundred sixteen".