16552216749 has 8 divisors (see below), whose sum is σ = 22348984960. Its totient is φ = 10895129856.

The previous prime is 16552216741. The next prime is 16552216763. The reversal of 16552216749 is 94761225561.

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

It is not a de Polignac number, because 16552216749 - 2³ = 16552216741 is a prime.

It is a super-2 number, since 2×16552216749² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16552216698 and 16552216707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16552216741) 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 7 ways as a sum of consecutive naturals, for example, 34920052 + ... + 34920525.

It is an arithmetic number, because the mean of its divisors is an integer number (2793623120).

Almost surely, 2^16552216749 is an apocalyptic number.

It is an amenable number.

16552216749 is a deficient number, since it is larger than the sum of its proper divisors (5796768211).

16552216749 is an equidigital number, since it uses as much as digits as its factorization.

16552216749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69840659.

The product of its digits is 907200, while the sum is 48.

The spelling of 16552216749 in words is "sixteen billion, five hundred fifty-two million, two hundred sixteen thousand, seven hundred forty-nine".