16461215133 has 16 divisors (see below), whose sum is σ = 23957760000. Its totient is φ = 9970588080.

The previous prime is 16461215129. The next prime is 16461215143. The reversal of 16461215133 is 33151216461.

It is a happy number.

It is not a de Polignac number, because 16461215133 - 2² = 16461215129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 16461215094 and 16461215103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16461215143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90733 + ... + 202866.

It is an arithmetic number, because the mean of its divisors is an integer number (1497360000).

Almost surely, 2^16461215133 is an apocalyptic number.

It is an amenable number.

16461215133 is a deficient number, since it is larger than the sum of its proper divisors (7496544867).

16461215133 is a wasteful number, since it uses less digits than its factorization.

16461215133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295312.

The product of its digits is 12960, while the sum is 33.

The spelling of 16461215133 in words is "sixteen billion, four hundred sixty-one million, two hundred fifteen thousand, one hundred thirty-three".