161453210106 has 32 divisors (see below), whose sum is σ = 340166730240. Its totient is φ = 50945439024.

The previous prime is 161453210081. The next prime is 161453210119. The reversal of 161453210106 is 601012354161.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 405670 + ... + 698193.

It is an arithmetic number, because the mean of its divisors is an integer number (10630210320).

Almost surely, 2^161453210106 is an apocalyptic number.

161453210106 is an abundant number, since it is smaller than the sum of its proper divisors (178713520134).

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

161453210106 is a wasteful number, since it uses less digits than its factorization.

161453210106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105170.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 161453210106 its reverse (601012354161), we get a palindrome (762465564267).

The spelling of 161453210106 in words is "one hundred sixty-one billion, four hundred fifty-three million, two hundred ten thousand, one hundred six".