161623362 has 16 divisors (see below), whose sum is σ = 325573920. Its totient is φ = 53486592.

The previous prime is 161623339. The next prime is 161623417. The reversal of 161623362 is 263326161.

It is a super-2 number, since 2×161623362² = 52244222288366088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96063 + ... + 97730.

It is an arithmetic number, because the mean of its divisors is an integer number (20348370).

Almost surely, 2^161623362 is an apocalyptic number.

161623362 is an abundant number, since it is smaller than the sum of its proper divisors (163950558).

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

161623362 is a wasteful number, since it uses less digits than its factorization.

161623362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193937.

The product of its digits is 7776, while the sum is 30.

The square root of 161623362 is about 12713.1177136059. The cubic root of 161623362 is about 544.7133829469.

The spelling of 161623362 in words is "one hundred sixty-one million, six hundred twenty-three thousand, three hundred sixty-two".