61051105510505 has 32 divisors (see below), whose sum is σ = 82849964313600. Its totient is φ = 42780242848000.

The previous prime is 61051105510477. The next prime is 61051105510543. The reversal of 61051105510505 is 50501550115016.

It is not a de Polignac number, because 61051105510505 - 2¹⁰ = 61051105509481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39190646 + ... + 40718655.

It is an arithmetic number, because the mean of its divisors is an integer number (2589061384800).

Almost surely, 2^{61051105510505} is an apocalyptic number.

It is an amenable number.

61051105510505 is a deficient number, since it is larger than the sum of its proper divisors (21798858803095).

61051105510505 is a wasteful number, since it uses less digits than its factorization.

61051105510505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79909825.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 61051105510505 in words is "sixty-one trillion, fifty-one billion, one hundred five million, five hundred ten thousand, five hundred five".