344145215550 has 48 divisors (see below), whose sum is σ = 854509973040. Its totient is φ = 91661322240.

The previous prime is 344145215527. The next prime is 344145215567. The reversal of 344145215550 is 55512541443.

It is a junction number, because it is equal to n+sod(n) for n = 344145215499 and 344145215508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1259427 + ... + 1508126.

It is an arithmetic number, because the mean of its divisors is an integer number (17802291105).

Almost surely, 2^344145215550 is an apocalyptic number.

344145215550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

344145215550 is an abundant number, since it is smaller than the sum of its proper divisors (510364757490).

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

344145215550 is a wasteful number, since it uses less digits than its factorization.

344145215550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768397 (or 2768392 counting only the distinct ones).

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

Adding to 344145215550 its reverse (55512541443), we get a palindrome (399657756993).

The spelling of 344145215550 in words is "three hundred forty-four billion, one hundred forty-five million, two hundred fifteen thousand, five hundred fifty".