105523221554 has 16 divisors (see below), whose sum is σ = 166629998880. Its totient is φ = 49980368160.

The previous prime is 105523221539. The next prime is 105523221571. The reversal of 105523221554 is 455122325501.

It is a happy number.

It is a super-2 number, since 2×105523221554² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349934 + ... + 577494.

It is an arithmetic number, because the mean of its divisors is an integer number (10414374930).

Almost surely, 2^105523221554 is an apocalyptic number.

105523221554 is a deficient number, since it is larger than the sum of its proper divisors (61106777326).

105523221554 is a wasteful number, since it uses less digits than its factorization.

105523221554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239785.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 105523221554 in words is "one hundred five billion, five hundred twenty-three million, two hundred twenty-one thousand, five hundred fifty-four".