158478566400 has 792 divisors, whose sum is σ = 707522197824. Its totient is φ = 32926924800.

The previous prime is 158478566381. The next prime is 158478566429. The reversal of 158478566400 is 4665874851.

158478566400 is a `hidden beast` number, since 1 + 5 + 8 + 4 + 78 + 566 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (792).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17736334 + ... + 17745266.

Almost surely, 2^158478566400 is an apocalyptic number.

158478566400 is a gapful number since it is divisible by the number (10) 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 158478566400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353761098912).

158478566400 is an abundant number, since it is smaller than the sum of its proper divisors (549043631424).

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

158478566400 is a wasteful number, since it uses less digits than its factorization.

158478566400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987 (or 8961 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 158478566400 in words is "one hundred fifty-eight billion, four hundred seventy-eight million, five hundred sixty-six thousand, four hundred".