14345321215511 has 32 divisors (see below), whose sum is σ = 17322173870400. Its totient is φ = 11703587374080.

The previous prime is 14345321215507. The next prime is 14345321215549. The reversal of 14345321215511 is 11551212354341.

It is a cyclic number.

It is not a de Polignac number, because 14345321215511 - 2² = 14345321215507 is a prime.

It is a super-2 number, since 2×14345321215511² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14345321115511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5768405 + ... + 7871793.

It is an arithmetic number, because the mean of its divisors is an integer number (541317933450).

Almost surely, 2^{14345321215511} is an apocalyptic number.

14345321215511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14345321215511 is a deficient number, since it is larger than the sum of its proper divisors (2976852654889).

14345321215511 is a wasteful number, since it uses less digits than its factorization.

14345321215511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104739.

The product of its digits is 72000, while the sum is 38.

Adding to 14345321215511 its reverse (11551212354341), we get a palindrome (25896533569852).

The spelling of 14345321215511 in words is "fourteen trillion, three hundred forty-five billion, three hundred twenty-one million, two hundred fifteen thousand, five hundred eleven".