105551521163 has 8 divisors (see below), whose sum is σ = 115150109760. Its totient is φ = 95953431880.

The previous prime is 105551521157. The next prime is 105551521189. The reversal of 105551521163 is 361125155501.

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

It is a cyclic number.

It is not a de Polignac number, because 105551521163 - 2⁶ = 105551521099 is a prime.

It is a super-2 number, since 2×105551521163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105551523163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420956 + ... + 623142.

It is an arithmetic number, because the mean of its divisors is an integer number (14393763720).

Almost surely, 2^105551521163 is an apocalyptic number.

105551521163 is a deficient number, since it is larger than the sum of its proper divisors (9598588597).

105551521163 is a wasteful number, since it uses less digits than its factorization.

105551521163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249657.

The product of its (nonzero) digits is 22500, while the sum is 35.

Adding to 105551521163 its reverse (361125155501), we get a palindrome (466676676664).

The spelling of 105551521163 in words is "one hundred five billion, five hundred fifty-one million, five hundred twenty-one thousand, one hundred sixty-three".