161453210105 has 8 divisors (see below), whose sum is σ = 211356929664. Its totient is φ = 117420516400.

The previous prime is 161453210081. The next prime is 161453210119. The reversal of 161453210105 is 501012354161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161453210105 - 2¹⁴ = 161453193721 is a prime.

It is a super-2 number, since 2×161453210105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 1467756401 + ... + 1467756510.

It is an arithmetic number, because the mean of its divisors is an integer number (26419616208).

Almost surely, 2^161453210105 is an apocalyptic number.

It is an amenable number.

161453210105 is a deficient number, since it is larger than the sum of its proper divisors (49903719559).

161453210105 is a wasteful number, since it uses less digits than its factorization.

161453210105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935512927.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 161453210105 its reverse (501012354161), we get a palindrome (662465564266).

The spelling of 161453210105 in words is "one hundred sixty-one billion, four hundred fifty-three million, two hundred ten thousand, one hundred five".