158446378002 has 32 divisors (see below), whose sum is σ = 346441515264. Its totient is φ = 47911230800.

The previous prime is 158446378001. The next prime is 158446378019. The reversal of 158446378002 is 200873644851.

It is not an unprimeable number, because it can be changed into a prime (158446378001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2539524 + ... + 2601167.

It is an arithmetic number, because the mean of its divisors is an integer number (10826297352).

Almost surely, 2^158446378002 is an apocalyptic number.

158446378002 is an abundant number, since it is smaller than the sum of its proper divisors (187995137262).

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

158446378002 is a wasteful number, since it uses less digits than its factorization.

158446378002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141174.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 158446378002 in words is "one hundred fifty-eight billion, four hundred forty-six million, three hundred seventy-eight thousand, two".