105500212660 has 12 divisors (see below), whose sum is σ = 221550446628. Its totient is φ = 42200085056.

The previous prime is 105500212639. The next prime is 105500212681. The reversal of 105500212660 is 66212005501.

It is an interprime number because it is at equal distance from previous prime (105500212639) and next prime (105500212681).

It can be written as a sum of positive squares in 2 ways, for example, as 18944219044 + 86555993616 = 137638^2 + 294204^2 .

It is a super-2 number, since 2×105500212660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637505297 + ... + 2637505336.

It is an arithmetic number, because the mean of its divisors is an integer number (18462537219).

Almost surely, 2^105500212660 is an apocalyptic number.

105500212660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105500212660 is an abundant number, since it is smaller than the sum of its proper divisors (116050233968).

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

105500212660 is a wasteful number, since it uses less digits than its factorization.

105500212660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275010642 (or 5275010640 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 105500212660 in words is "one hundred five billion, five hundred million, two hundred twelve thousand, six hundred sixty".