161542424645300 has 144 divisors (see below), whose sum is σ = 371724096468480. Its totient is φ = 60827879232000.

The previous prime is 161542424645281. The next prime is 161542424645317. The reversal of 161542424645300 is 3546424245161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483752390 + ... + 484086210.

Almost surely, 2^{161542424645300} is an apocalyptic number.

161542424645300 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 161542424645300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185862048234240).

161542424645300 is an abundant number, since it is smaller than the sum of its proper divisors (210181671823180).

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

161542424645300 is a wasteful number, since it uses less digits than its factorization.

161542424645300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338122 (or 338115 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 161542424645300 in words is "one hundred sixty-one trillion, five hundred forty-two billion, four hundred twenty-four million, six hundred forty-five thousand, three hundred".