16500145953 has 8 divisors (see below), whose sum is σ = 22278678400. Its totient is φ = 10860855408.

The previous prime is 16500145933. The next prime is 16500145993. The reversal of 16500145953 is 35954100561.

It is a happy number.

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

It is not a de Polignac number, because 16500145953 - 2¹⁶ = 16500080417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16500145933) 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, 34810198 + ... + 34810671.

It is an arithmetic number, because the mean of its divisors is an integer number (2784834800).

Almost surely, 2^16500145953 is an apocalyptic number.

It is an amenable number.

16500145953 is a deficient number, since it is larger than the sum of its proper divisors (5778532447).

16500145953 is an equidigital number, since it uses as much as digits as its factorization.

16500145953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69620951.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 16500145953 in words is "sixteen billion, five hundred million, one hundred forty-five thousand, nine hundred fifty-three".