106506565020 has 144 divisors (see below), whose sum is σ = 342850566240. Its totient is φ = 26670379008.

The previous prime is 106506565019. The next prime is 106506565027. The reversal of 106506565020 is 20565605601.

It is a happy number.

106506565020 is a `hidden beast` number, since 10 + 65 + 0 + 6 + 565 + 0 + 20 = 666.

It is a super-2 number, since 2×106506565020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106506565027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1316296 + ... + 1394864.

It is an arithmetic number, because the mean of its divisors is an integer number (2380906710).

Almost surely, 2^106506565020 is an apocalyptic number.

106506565020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 106506565020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171425283120).

106506565020 is an abundant number, since it is smaller than the sum of its proper divisors (236344001220).

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

106506565020 is a wasteful number, since it uses less digits than its factorization.

106506565020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79044 (or 79039 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 106506565020 in words is "one hundred six billion, five hundred six million, five hundred sixty-five thousand, twenty".