16342658409 has 48 divisors (see below), whose sum is σ = 28031140800. Its totient is φ = 8373335040.

The previous prime is 16342658407. The next prime is 16342658411. The reversal of 16342658409 is 90485624361.

It is an interprime number because it is at equal distance from previous prime (16342658407) and next prime (16342658411).

It is not a de Polignac number, because 16342658409 - 2¹ = 16342658407 is a prime.

It is a super-2 number, since 2×16342658409² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16342658407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48817 + ... + 187265.

It is an arithmetic number, because the mean of its divisors is an integer number (583982100).

Almost surely, 2^16342658409 is an apocalyptic number.

It is an amenable number.

16342658409 is a deficient number, since it is larger than the sum of its proper divisors (11688482391).

16342658409 is a wasteful number, since it uses less digits than its factorization.

16342658409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138550 (or 138543 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 16342658409 in words is "sixteen billion, three hundred forty-two million, six hundred fifty-eight thousand, four hundred nine".