16656302001 has 4 divisors (see below), whose sum is σ = 22208402672. Its totient is φ = 11104201332.

The previous prime is 16656301993. The next prime is 16656302011. The reversal of 16656302001 is 10020365661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16656302001 - 2³ = 16656301993 is a prime.

It is a super-3 number, since 3×16656302001³ (a number of 32 digits) contains 333 as substring.

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 16656302001.

It is not an unprimeable number, because it can be changed into a prime (16656302011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2776050331 + ... + 2776050336.

It is an arithmetic number, because the mean of its divisors is an integer number (5552100668).

Almost surely, 2^16656302001 is an apocalyptic number.

It is an amenable number.

16656302001 is a deficient number, since it is larger than the sum of its proper divisors (5552100671).

16656302001 is an equidigital number, since it uses as much as digits as its factorization.

16656302001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552100670.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 16656302001 its reverse (10020365661), we get a palindrome (26676667662).

The spelling of 16656302001 in words is "sixteen billion, six hundred fifty-six million, three hundred two thousand, one".