16403433430461 has 48 divisors (see below), whose sum is σ = 27527357902464. Its totient is φ = 8504907840000.

The previous prime is 16403433430379. The next prime is 16403433430469.

16403433430461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16403433430461 - 2¹¹ = 16403433428413 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16403433430469) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4871440 + ... + 7519161.

It is an arithmetic number, because the mean of its divisors is an integer number (573486622968).

Almost surely, 2^{16403433430461} is an apocalyptic number.

16403433430461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16403433430461 is a deficient number, since it is larger than the sum of its proper divisors (11123924472003).

16403433430461 is a wasteful number, since it uses less digits than its factorization.

16403433430461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391154 (or 12391143 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 16403433430461 in words is "sixteen trillion, four hundred three billion, four hundred thirty-three million, four hundred thirty thousand, four hundred sixty-one".