105961988054 has 8 divisors (see below), whose sum is σ = 171169365360. Its totient is φ = 48905532936.

The previous prime is 105961988051. The next prime is 105961988063. The reversal of 105961988054 is 450889169501.

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

It is a super-2 number, since 2×105961988054² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105961988051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037730514 + ... + 2037730565.

It is an arithmetic number, because the mean of its divisors is an integer number (21396170670).

Almost surely, 2^105961988054 is an apocalyptic number.

105961988054 is a deficient number, since it is larger than the sum of its proper divisors (65207377306).

105961988054 is a wasteful number, since it uses less digits than its factorization.

105961988054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075461094.

The product of its (nonzero) digits is 3110400, while the sum is 56.

The spelling of 105961988054 in words is "one hundred five billion, nine hundred sixty-one million, nine hundred eighty-eight thousand, fifty-four".