105344254551 has 4 divisors (see below), whose sum is σ = 140459006072. Its totient is φ = 70229503032.

The previous prime is 105344254537. The next prime is 105344254579. The reversal of 105344254551 is 155452443501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105344254551 - 2⁷ = 105344254423 is a prime.

It is a super-2 number, since 2×105344254551² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105344254051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17557375756 + ... + 17557375761.

It is an arithmetic number, because the mean of its divisors is an integer number (35114751518).

Almost surely, 2^105344254551 is an apocalyptic number.

105344254551 is a deficient number, since it is larger than the sum of its proper divisors (35114751521).

105344254551 is an equidigital number, since it uses as much as digits as its factorization.

105344254551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35114751520.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 105344254551 in words is "one hundred five billion, three hundred forty-four million, two hundred fifty-four thousand, five hundred fifty-one".