61010105505005 has 16 divisors (see below), whose sum is σ = 73965507627648. Its totient is φ = 48308386392000.

The previous prime is 61010105504917. The next prime is 61010105505017. The reversal of 61010105505005 is 50050550101016.

It is a happy number.

It is not a de Polignac number, because 61010105505005 - 2²⁶ = 61010038396141 is a prime.

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, 159559001 + ... + 159940910.

It is an arithmetic number, because the mean of its divisors is an integer number (4622844226728).

Almost surely, 2^{61010105505005} is an apocalyptic number.

It is an amenable number.

61010105505005 is a deficient number, since it is larger than the sum of its proper divisors (12955402122643).

61010105505005 is a wasteful number, since it uses less digits than its factorization.

61010105505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319500308.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 61010105505005 in words is "sixty-one trillion, ten billion, one hundred five million, five hundred five thousand, five".