105105120054454 has 16 divisors (see below), whose sum is σ = 170385141627792. Its totient is φ = 48338641783008.

The previous prime is 105105120054427. The next prime is 105105120054457. The reversal of 105105120054454 is 454450021501501.

It is a super-2 number, since 2×105105120054454² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105105120054457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142226949 + ... + 7142241664.

It is an arithmetic number, because the mean of its divisors is an integer number (10649071351737).

Almost surely, 2^{105105120054454} is an apocalyptic number.

105105120054454 is a deficient number, since it is larger than the sum of its proper divisors (65280021573338).

105105120054454 is a wasteful number, since it uses less digits than its factorization.

105105120054454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14284468911.

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 105105120054454 its reverse (454450021501501), we get a palindrome (559555141555955).

The spelling of 105105120054454 in words is "one hundred five trillion, one hundred five billion, one hundred twenty million, fifty-four thousand, four hundred fifty-four".