340443125505 has 48 divisors (see below), whose sum is σ = 675171154944. Its totient is φ = 155453558400.

The previous prime is 340443125447. The next prime is 340443125513. The reversal of 340443125505 is 505521344043.

340443125505 is a `hidden beast` number, since 3 + 40 + 443 + 125 + 50 + 5 = 666.

It is not a de Polignac number, because 340443125505 - 2⁸ = 340443125249 is a prime.

It is a super-2 number, since 2×340443125505² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340443125505.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 339921 + ... + 892430.

It is an arithmetic number, because the mean of its divisors is an integer number (14066065728).

Almost surely, 2^340443125505 is an apocalyptic number.

340443125505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340443125505 is a deficient number, since it is larger than the sum of its proper divisors (334728029439).

340443125505 is a wasteful number, since it uses less digits than its factorization.

340443125505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233246 (or 1233243 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 340443125505 its reverse (505521344043), we get a palindrome (845964469548).

The spelling of 340443125505 in words is "three hundred forty billion, four hundred forty-three million, one hundred twenty-five thousand, five hundred five".