16158136417 has 4 divisors (see below), whose sum is σ = 16679366656. Its totient is φ = 15636906180.

The previous prime is 16158136399. The next prime is 16158136459. The reversal of 16158136417 is 71463185161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71463185161 = 23 ⋅3107095007.

It is a cyclic number.

It is not a de Polignac number, because 16158136417 - 2⁷ = 16158136289 is a prime.

It is a super-2 number, since 2×16158136417² (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 (16158136487) 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, 260615073 + ... + 260615134.

It is an arithmetic number, because the mean of its divisors is an integer number (4169841664).

Almost surely, 2^16158136417 is an apocalyptic number.

It is an amenable number.

16158136417 is a deficient number, since it is larger than the sum of its proper divisors (521230239).

16158136417 is an equidigital number, since it uses as much as digits as its factorization.

16158136417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521230238.

The product of its digits is 120960, while the sum is 43.

The spelling of 16158136417 in words is "sixteen billion, one hundred fifty-eight million, one hundred thirty-six thousand, four hundred seventeen".