163446653210105 has 4 divisors (see below), whose sum is σ = 196135983852132. Its totient is φ = 130757322568080.

The previous prime is 163446653210101. The next prime is 163446653210123. The reversal of 163446653210105 is 501012356644361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44503788685456 + 118942864524649 = 6671116^2 + 10906093^2 .

It is not a de Polignac number, because 163446653210105 - 2² = 163446653210101 is a prime.

It is a super-2 number, since 2×163446653210105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163446653210105.

It is not an unprimeable number, because it can be changed into a prime (163446653210101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16344665321006 + ... + 16344665321015.

It is an arithmetic number, because the mean of its divisors is an integer number (49033995963033).

Almost surely, 2^{163446653210105} is an apocalyptic number.

It is an amenable number.

163446653210105 is a deficient number, since it is larger than the sum of its proper divisors (32689330642027).

163446653210105 is an equidigital number, since it uses as much as digits as its factorization.

163446653210105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32689330642026.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 163446653210105 in words is "one hundred sixty-three trillion, four hundred forty-six billion, six hundred fifty-three million, two hundred ten thousand, one hundred five".