158319021216 has 96 divisors (see below), whose sum is σ = 438172580160. Its totient is φ = 49914095616.

The previous prime is 158319021173. The next prime is 158319021227. The reversal of 158319021216 is 612120913851.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055070 + ... + 1195746.

It is an arithmetic number, because the mean of its divisors is an integer number (4564297710).

Almost surely, 2^158319021216 is an apocalyptic number.

158319021216 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 158319021216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219086290080).

158319021216 is an abundant number, since it is smaller than the sum of its proper divisors (279853558944).

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

158319021216 is a wasteful number, since it uses less digits than its factorization.

158319021216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141326 (or 141318 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 158319021216 in words is "one hundred fifty-eight billion, three hundred nineteen million, twenty-one thousand, two hundred sixteen".