16443412770773 has 4 divisors (see below), whose sum is σ = 16594269768780. Its totient is φ = 16292555772768.

The previous prime is 16443412770761. The next prime is 16443412770881. The reversal of 16443412770773 is 37707721434461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14256794017489 + 2186618753284 = 3775817^2 + 1478722^2 .

It is a cyclic number.

It is not a de Polignac number, because 16443412770773 - 2¹⁴ = 16443412754389 is a prime.

It is a super-3 number, since 3×16443412770773³ (a number of 41 digits) contains 333 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 (16443412770973) 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, 75428498840 + ... + 75428499057.

It is an arithmetic number, because the mean of its divisors is an integer number (4148567442195).

Almost surely, 2^{16443412770773} is an apocalyptic number.

It is an amenable number.

16443412770773 is a deficient number, since it is larger than the sum of its proper divisors (150856998007).

16443412770773 is a wasteful number, since it uses less digits than its factorization.

16443412770773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150856998006.

The product of its (nonzero) digits is 16595712, while the sum is 56.

The spelling of 16443412770773 in words is "sixteen trillion, four hundred forty-three billion, four hundred twelve million, seven hundred seventy thousand, seven hundred seventy-three".