10399340505 has 16 divisors (see below), whose sum is σ = 16741028160. Its totient is φ = 5512287168.

The previous prime is 10399340503. The next prime is 10399340533. The reversal of 10399340505 is 50504399301.

It is not a de Polignac number, because 10399340505 - 2¹ = 10399340503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10399340503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124210 + ... + 2129099.

It is an arithmetic number, because the mean of its divisors is an integer number (1046314260).

Almost surely, 2^10399340505 is an apocalyptic number.

10399340505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10399340505 is a deficient number, since it is larger than the sum of its proper divisors (6341687655).

10399340505 is a wasteful number, since it uses less digits than its factorization.

10399340505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253480.

The product of its (nonzero) digits is 72900, while the sum is 39.

The spelling of 10399340505 in words is "ten billion, three hundred ninety-nine million, three hundred forty thousand, five hundred five".