16208440769 has 8 divisors (see below), whose sum is σ = 16635502752. Its totient is φ = 15783657120.

The previous prime is 16208440733. The next prime is 16208440783. The reversal of 16208440769 is 96704480261.

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

It is a cyclic number.

It is not a de Polignac number, because 16208440769 - 2¹⁶ = 16208375233 is a prime.

It is a super-2 number, since 2×16208440769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16208440709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555164 + ... + 583629.

It is an arithmetic number, because the mean of its divisors is an integer number (2079437844).

Almost surely, 2^16208440769 is an apocalyptic number.

It is an amenable number.

16208440769 is a deficient number, since it is larger than the sum of its proper divisors (427061983).

16208440769 is a wasteful number, since it uses less digits than its factorization.

16208440769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139167.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 16208440769 in words is "sixteen billion, two hundred eight million, four hundred forty thousand, seven hundred sixty-nine".