61105610610005 has 16 divisors (see below), whose sum is σ = 81514581302784. Its totient is φ = 43668525695040.

The previous prime is 61105610609999. The next prime is 61105610610017. The reversal of 61105610610005 is 50001601650116.

It is not a de Polignac number, because 61105610610005 - 2²⁰ = 61105609561429 is a prime.

It is a super-2 number, since 2×61105610610005² (a number of 28 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 15 ways as a sum of consecutive naturals, for example, 15162680519 + ... + 15162684548.

It is an arithmetic number, because the mean of its divisors is an integer number (5094661331424).

Almost surely, 2^{61105610610005} is an apocalyptic number.

61105610610005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61105610610005 is a deficient number, since it is larger than the sum of its proper divisors (20408970692779).

61105610610005 is a wasteful number, since it uses less digits than its factorization.

61105610610005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30325365116.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 61105610610005 in words is "sixty-one trillion, one hundred five billion, six hundred ten million, six hundred ten thousand, five".