162158371200 has 1152 divisors, whose sum is σ = 708627978240. Its totient is φ = 35869132800.

The previous prime is 162158371183. The next prime is 162158371229. The reversal of 162158371200 is 2173851261.

162158371200 is a `hidden beast` number, since 1 + 6 + 2 + 1 + 583 + 71 + 2 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5230915185 + ... + 5230915215.

Almost surely, 2^162158371200 is an apocalyptic number.

162158371200 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 162158371200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354313989120).

162158371200 is an abundant number, since it is smaller than the sum of its proper divisors (546469607040).

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

162158371200 is an frugal number, since it uses more digits than its factorization.

162158371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 162158371200 in words is "one hundred sixty-two billion, one hundred fifty-eight million, three hundred seventy-one thousand, two hundred".