158418563394 has 192 divisors, whose sum is σ = 425700696960. Its totient is φ = 38833966080.

The previous prime is 158418563371. The next prime is 158418563497. The reversal of 158418563394 is 493365814851.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3828174 + ... + 3869334.

It is an arithmetic number, because the mean of its divisors is an integer number (2217191130).

Almost surely, 2^158418563394 is an apocalyptic number.

158418563394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158418563394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212850348480).

158418563394 is an abundant number, since it is smaller than the sum of its proper divisors (267282133566).

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

158418563394 is a wasteful number, since it uses less digits than its factorization.

158418563394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41265 (or 41258 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 57.

The spelling of 158418563394 in words is "one hundred fifty-eight billion, four hundred eighteen million, five hundred sixty-three thousand, three hundred ninety-four".