158220000450 has 162 divisors, whose sum is σ = 451970010219. Its totient is φ = 39674115840.

The previous prime is 158220000413. The next prime is 158220000461. The reversal of 158220000450 is 54000022851.

It is a happy number.

158220000450 is a `hidden beast` number, since 1 + 5 + 8 + 2 + 200 + 0 + 0 + 450 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 103023666729 + 55196333721 = 320973^2 + 234939^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=281265.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 143444599 + ... + 143445701.

Almost surely, 2^158220000450 is an apocalyptic number.

158220000450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158220000450

158220000450 is an abundant number, since it is smaller than the sum of its proper divisors (293750009769).

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

158220000450 is a wasteful number, since it uses less digits than its factorization.

158220000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Multiplying 158220000450 by its product of nonzero digits (3200), we get a square (506304001440000 = 22501200²).

The spelling of 158220000450 in words is "one hundred fifty-eight billion, two hundred twenty million, four hundred fifty", and thus it is an aban number.