16418422679 has 4 divisors (see below), whose sum is σ = 16569050520. Its totient is φ = 16267794840.

The previous prime is 16418422667. The next prime is 16418422693. The reversal of 16418422679 is 97622481461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97622481461 = 61231 ⋅1594331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16418422679 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 (16418422379) 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, 75313757 + ... + 75313974.

It is an arithmetic number, because the mean of its divisors is an integer number (4142262630).

Almost surely, 2^16418422679 is an apocalyptic number.

16418422679 is a deficient number, since it is larger than the sum of its proper divisors (150627841).

16418422679 is a wasteful number, since it uses less digits than its factorization.

16418422679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150627840.

The product of its digits is 1161216, while the sum is 50.

The spelling of 16418422679 in words is "sixteen billion, four hundred eighteen million, four hundred twenty-two thousand, six hundred seventy-nine".