16465808849 has 8 divisors (see below), whose sum is σ = 18819576768. Its totient is φ = 14112418320.

The previous prime is 16465808839. The next prime is 16465808851. The reversal of 16465808849 is 94880856461.

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

It is a de Polignac number, because none of the positive numbers 2^k-16465808849 is a prime.

It is a super-2 number, since 2×16465808849² (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 (16465808809) 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, 6314 + ... + 181580.

It is an arithmetic number, because the mean of its divisors is an integer number (2352447096).

Almost surely, 2^16465808849 is an apocalyptic number.

It is an amenable number.

16465808849 is a deficient number, since it is larger than the sum of its proper divisors (2353767919).

16465808849 is a wasteful number, since it uses less digits than its factorization.

16465808849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188695.

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 16465808849 in words is "sixteen billion, four hundred sixty-five million, eight hundred eight thousand, eight hundred forty-nine".