106010556581 has 4 divisors (see below), whose sum is σ = 112246471692. Its totient is φ = 99774641472.

The previous prime is 106010556503. The next prime is 106010556611. The reversal of 106010556581 is 185655010601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 185655010601 = 81551 ⋅2276551.

It can be written as a sum of positive squares in 2 ways, for example, as 30970720225 + 75039836356 = 175985^2 + 273934^2 .

It is a cyclic number.

It is not a de Polignac number, because 106010556581 - 2¹⁸ = 106010294437 is a prime.

It is a super-2 number, since 2×106010556581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106010556481) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3117957530 + ... + 3117957563.

It is an arithmetic number, because the mean of its divisors is an integer number (28061617923).

Almost surely, 2^106010556581 is an apocalyptic number.

It is an amenable number.

106010556581 is a deficient number, since it is larger than the sum of its proper divisors (6235915111).

106010556581 is an equidigital number, since it uses as much as digits as its factorization.

106010556581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235915110.

The product of its (nonzero) digits is 36000, while the sum is 38.

The spelling of 106010556581 in words is "one hundred six billion, ten million, five hundred fifty-six thousand, five hundred eighty-one".