105161510625 has 20 divisors (see below), whose sum is σ = 175213101360. Its totient is φ = 56086138000.

The previous prime is 105161510617. The next prime is 105161510687. The reversal of 105161510625 is 526015161501.

It is not a de Polignac number, because 105161510625 - 2³ = 105161510617 is a prime.

It is a super-2 number, since 2×105161510625² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28041195 + ... + 28044944.

It is an arithmetic number, because the mean of its divisors is an integer number (8760655068).

Almost surely, 2^105161510625 is an apocalyptic number.

105161510625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105161510625 is a deficient number, since it is larger than the sum of its proper divisors (70051590735).

105161510625 is an frugal number, since it uses more digits than its factorization.

105161510625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56086162 (or 56086147 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 105161510625 in words is "one hundred five billion, one hundred sixty-one million, five hundred ten thousand, six hundred twenty-five".