16343434261 has 16 divisors (see below), whose sum is σ = 20586303360. Its totient is φ = 12603847680.

The previous prime is 16343434259. The next prime is 16343434321. The reversal of 16343434261 is 16243434361.

It is a cyclic number.

It is not a de Polignac number, because 16343434261 - 2¹ = 16343434259 is a prime.

It is a super-2 number, since 2×16343434261² (a number of 21 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 16343434261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16343434201) 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, 1086616 + ... + 1101553.

It is an arithmetic number, because the mean of its divisors is an integer number (1286643960).

Almost surely, 2^16343434261 is an apocalyptic number.

16343434261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16343434261 is a deficient number, since it is larger than the sum of its proper divisors (4242869099).

16343434261 is a wasteful number, since it uses less digits than its factorization.

16343434261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188284.

The product of its digits is 124416, while the sum is 37.

The spelling of 16343434261 in words is "sixteen billion, three hundred forty-three million, four hundred thirty-four thousand, two hundred sixty-one".