158394965091552 has 576 divisors, whose sum is σ = 539305391858688. Its totient is φ = 44795358720000.

The previous prime is 158394965091497. The next prime is 158394965091821. The reversal of 158394965091552 is 255190569493851.

158394965091552 is a `hidden beast` number, since 1 + 5 + 8 + 3 + 9 + 4 + 9 + 65 + 0 + 9 + 1 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2309569902 + ... + 2309638482.

It is an arithmetic number, because the mean of its divisors is an integer number (936294083088).

Almost surely, 2^{158394965091552} is an apocalyptic number.

158394965091552 is a gapful number since it is divisible by the number (12) 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 158394965091552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269652695929344).

158394965091552 is an abundant number, since it is smaller than the sum of its proper divisors (380910426767136).

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

158394965091552 is a wasteful number, since it uses less digits than its factorization.

158394965091552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69045 (or 69025 counting only the distinct ones).

The product of its (nonzero) digits is 524880000, while the sum is 72.

The spelling of 158394965091552 in words is "one hundred fifty-eight trillion, three hundred ninety-four billion, nine hundred sixty-five million, ninety-one thousand, five hundred fifty-two".