16796472621 has 4 divisors (see below), whose sum is σ = 22395296832. Its totient is φ = 11197648412.

The previous prime is 16796472593. The next prime is 16796472647. The reversal of 16796472621 is 12627469761.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 16796472621 - 2¹³ = 16796464429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16796472521) 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 3 ways as a sum of consecutive naturals, for example, 2799412101 + ... + 2799412106.

It is an arithmetic number, because the mean of its divisors is an integer number (5598824208).

Almost surely, 2^16796472621 is an apocalyptic number.

It is an amenable number.

16796472621 is a deficient number, since it is larger than the sum of its proper divisors (5598824211).

16796472621 is an equidigital number, since it uses as much as digits as its factorization.

16796472621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598824210.

The product of its digits is 1524096, while the sum is 51.

The spelling of 16796472621 in words is "sixteen billion, seven hundred ninety-six million, four hundred seventy-two thousand, six hundred twenty-one".