16513066261 has 8 divisors (see below), whose sum is σ = 16796736000. Its totient is φ = 16229522880.

The previous prime is 16513066259. The next prime is 16513066303. The reversal of 16513066261 is 16266031561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16513066261 - 2¹ = 16513066259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16513066261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16513060261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253981 + ... + 312301.

It is an arithmetic number, because the mean of its divisors is an integer number (2099592000).

Almost surely, 2^16513066261 is an apocalyptic number.

It is an amenable number.

16513066261 is a deficient number, since it is larger than the sum of its proper divisors (283669739).

16513066261 is an equidigital number, since it uses as much as digits as its factorization.

16513066261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63179.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 16513066261 in words is "sixteen billion, five hundred thirteen million, sixty-six thousand, two hundred sixty-one".