16944452501 has 4 divisors (see below), whose sum is σ = 17033167104. Its totient is φ = 16855737900.

The previous prime is 16944452477. The next prime is 16944452507. The reversal of 16944452501 is 10525444961.

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 16944452501 - 2¹⁰ = 16944451477 is a prime.

It is a super-2 number, since 2×16944452501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16944452507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44357015 + ... + 44357396.

It is an arithmetic number, because the mean of its divisors is an integer number (4258291776).

Almost surely, 2^16944452501 is an apocalyptic number.

It is an amenable number.

16944452501 is a deficient number, since it is larger than the sum of its proper divisors (88714603).

16944452501 is an equidigital number, since it uses as much as digits as its factorization.

16944452501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88714602.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 16944452501 in words is "sixteen billion, nine hundred forty-four million, four hundred fifty-two thousand, five hundred one".