106560661505 has 8 divisors (see below), whose sum is σ = 127936203432. Its totient is φ = 85206256128.

The previous prime is 106560661447. The next prime is 106560661547. The reversal of 106560661505 is 505166065601.

It can be written as a sum of positive squares in 4 ways, for example, as 3090359281 + 103470302224 = 55591^2 + 321668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106560661505 is a prime.

It is a super-2 number, since 2×106560661505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5273042 + ... + 5293211.

It is an arithmetic number, because the mean of its divisors is an integer number (15992025429).

Almost surely, 2^106560661505 is an apocalyptic number.

It is an amenable number.

106560661505 is a deficient number, since it is larger than the sum of its proper divisors (21375541927).

106560661505 is a wasteful number, since it uses less digits than its factorization.

106560661505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10568275.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 106560661505 in words is "one hundred six billion, five hundred sixty million, six hundred sixty-one thousand, five hundred five".