105615065550 has 24 divisors (see below), whose sum is σ = 261925362936. Its totient is φ = 28164017440.

The previous prime is 105615065513. The next prime is 105615065551. The reversal of 105615065550 is 55560516501.

It is a super-2 number, since 2×105615065550² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105615065499 and 105615065508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105615065551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352050069 + ... + 352050368.

It is an arithmetic number, because the mean of its divisors is an integer number (10913556789).

Almost surely, 2^105615065550 is an apocalyptic number.

105615065550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105615065550 is an abundant number, since it is smaller than the sum of its proper divisors (156310297386).

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

105615065550 is a wasteful number, since it uses less digits than its factorization.

105615065550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704100452 (or 704100447 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 105615065550 in words is "one hundred five billion, six hundred fifteen million, sixty-five thousand, five hundred fifty".