105661216054 has 16 divisors (see below), whose sum is σ = 164387036016. Its totient is φ = 50893812000.

The previous prime is 105661216051. The next prime is 105661216099. The reversal of 105661216054 is 450612166501.

It is a super-2 number, since 2×105661216054² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105661216051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7061112 + ... + 7076059.

It is an arithmetic number, because the mean of its divisors is an integer number (10274189751).

Almost surely, 2^105661216054 is an apocalyptic number.

105661216054 is a deficient number, since it is larger than the sum of its proper divisors (58725819962).

105661216054 is a wasteful number, since it uses less digits than its factorization.

105661216054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14137311.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 105661216054 in words is "one hundred five billion, six hundred sixty-one million, two hundred sixteen thousand, fifty-four".