16415849813 has 16 divisors (see below), whose sum is σ = 18045780480. Its totient is φ = 14809282800.

The previous prime is 16415849797. The next prime is 16415849851. The reversal of 16415849813 is 31894851461.

It is a cyclic number.

It is not a de Polignac number, because 16415849813 - 2⁴ = 16415849797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16415840813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765998 + ... + 787136.

It is an arithmetic number, because the mean of its divisors is an integer number (1127861280).

Almost surely, 2^16415849813 is an apocalyptic number.

It is an amenable number.

16415849813 is a deficient number, since it is larger than the sum of its proper divisors (1629930667).

16415849813 is a wasteful number, since it uses less digits than its factorization.

16415849813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21688.

The product of its digits is 829440, while the sum is 50.

The spelling of 16415849813 in words is "sixteen billion, four hundred fifteen million, eight hundred forty-nine thousand, eight hundred thirteen".