16434643461 has 32 divisors (see below), whose sum is σ = 24232970880. Its totient is φ = 9863110656.

The previous prime is 16434643451. The next prime is 16434643469.

It is a happy number.

16434643461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16434643461 - 2⁹ = 16434642949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434643469) 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, 37525 + ... + 185141.

It is an arithmetic number, because the mean of its divisors is an integer number (757280340).

Almost surely, 2^16434643461 is an apocalyptic number.

It is an amenable number.

16434643461 is a deficient number, since it is larger than the sum of its proper divisors (7798327419).

16434643461 is a wasteful number, since it uses less digits than its factorization.

16434643461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147733.

The product of its digits is 497664, while the sum is 42.

The spelling of 16434643461 in words is "sixteen billion, four hundred thirty-four million, six hundred forty-three thousand, four hundred sixty-one".