106626365561 has 4 divisors (see below), whose sum is σ = 106892267124. Its totient is φ = 106360464000.

The previous prime is 106626365557. The next prime is 106626365569. The reversal of 106626365561 is 165563626601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63381083536 + 43245282025 = 251756^2 + 207955^2 .

It is a cyclic number.

It is not a de Polignac number, because 106626365561 - 2² = 106626365557 is a prime.

It is a super-2 number, since 2×106626365561² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106626365569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132950180 + ... + 132950981.

It is an arithmetic number, because the mean of its divisors is an integer number (26723066781).

Almost surely, 2^106626365561 is an apocalyptic number.

It is an amenable number.

106626365561 is a deficient number, since it is larger than the sum of its proper divisors (265901563).

106626365561 is an equidigital number, since it uses as much as digits as its factorization.

106626365561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265901562.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 106626365561 in words is "one hundred six billion, six hundred twenty-six million, three hundred sixty-five thousand, five hundred sixty-one".