161344224090 has 96 divisors (see below), whose sum is σ = 494888150016. Its totient is φ = 35689040640.

The previous prime is 161344224037. The next prime is 161344224101. The reversal of 161344224090 is 90422443161.

161344224090 is a `hidden beast` number, since 1 + 6 + 1 + 344 + 224 + 0 + 90 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4111147 + ... + 4150206.

It is an arithmetic number, because the mean of its divisors is an integer number (5155084896).

Almost surely, 2^161344224090 is an apocalyptic number.

161344224090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161344224090 is an abundant number, since it is smaller than the sum of its proper divisors (333543925926).

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

161344224090 is a wasteful number, since it uses less digits than its factorization.

161344224090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261404 (or 8261401 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 161344224090 in words is "one hundred sixty-one billion, three hundred forty-four million, two hundred twenty-four thousand, ninety".