105611061161506 has 8 divisors (see below), whose sum is σ = 159985072848924. Its totient is φ = 52282703545200.

The previous prime is 105611061161467. The next prime is 105611061161513. The reversal of 105611061161506 is 605161160116501.

It can be written as a sum of positive squares in 2 ways, for example, as 102792406318281 + 2818654843225 = 10138659^2 + 1678885^2 .

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

It is a super-2 number, since 2×105611061161506² (a number of 29 digits) contains 22 as substring.

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, 261413517525 + ... + 261413517928.

Almost surely, 2^{105611061161506} is an apocalyptic number.

105611061161506 is a deficient number, since it is larger than the sum of its proper divisors (54374011687418).

105611061161506 is a wasteful number, since it uses less digits than its factorization.

105611061161506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522827035556.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 105611061161506 in words is "one hundred five trillion, six hundred eleven billion, sixty-one million, one hundred sixty-one thousand, five hundred six".