105234685550 has 24 divisors (see below), whose sum is σ = 196138483536. Its totient is φ = 42007429440.

The previous prime is 105234685547. The next prime is 105234685639. The reversal of 105234685550 is 55586432501.

It is a happy number.

It is a super-2 number, since 2×105234685550² (a number of 23 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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2136527 + ... + 2185226.

It is an arithmetic number, because the mean of its divisors is an integer number (8172436814).

Almost surely, 2^105234685550 is an apocalyptic number.

105234685550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105234685550 is a deficient number, since it is larger than the sum of its proper divisors (90903797986).

105234685550 is a wasteful number, since it uses less digits than its factorization.

105234685550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322252 (or 4322247 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 105234685550 in words is "one hundred five billion, two hundred thirty-four million, six hundred eighty-five thousand, five hundred fifty".