105455405444440 has 32 divisors (see below), whose sum is σ = 237900716802000. Its totient is φ = 42070863590784.

The previous prime is 105455405444429. The next prime is 105455405444453. The reversal of 105455405444440 is 44444504554501.

It is a super-2 number, since 2×105455405444440² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3478065495 + ... + 3478095814.

Almost surely, 2^{105455405444440} is an apocalyptic number.

105455405444440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105455405444440 is an abundant number, since it is smaller than the sum of its proper divisors (132445311357560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105455405444440 is a wasteful number, since it uses less digits than its factorization.

105455405444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956161699 (or 6956161695 counting only the distinct ones).

The product of its (nonzero) digits is 10240000, while the sum is 49.

Adding to 105455405444440 its reverse (44444504554501), we get a palindrome (149899909998941).

The spelling of 105455405444440 in words is "one hundred five trillion, four hundred fifty-five billion, four hundred five million, four hundred forty-four thousand, four hundred forty".