106651546565 has 4 divisors (see below), whose sum is σ = 127981855884. Its totient is φ = 85321237248.

The previous prime is 106651546559. The next prime is 106651546571. The reversal of 106651546565 is 565645156601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (106651546559) and next prime (106651546571).

It can be written as a sum of positive squares in 2 ways, for example, as 71841689089 + 34809857476 = 268033^2 + 186574^2 .

It is a cyclic number.

It is not a de Polignac number, because 106651546565 - 2⁶ = 106651546501 is a prime.

It is a super-2 number, since 2×106651546565² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 10665154652 + ... + 10665154661.

It is an arithmetic number, because the mean of its divisors is an integer number (31995463971).

Almost surely, 2^106651546565 is an apocalyptic number.

It is an amenable number.

106651546565 is a deficient number, since it is larger than the sum of its proper divisors (21330309319).

106651546565 is an equidigital number, since it uses as much as digits as its factorization.

106651546565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21330309318.

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 106651546565 in words is "one hundred six billion, six hundred fifty-one million, five hundred forty-six thousand, five hundred sixty-five".