16670417867 has 4 divisors (see below), whose sum is σ = 16671788880. Its totient is φ = 16669046856.

The previous prime is 16670417861. The next prime is 16670417887. The reversal of 16670417867 is 76871407661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76871407661 = 60719 ⋅1266019.

It is a cyclic number.

It is not a de Polignac number, because 16670417867 - 2⁸ = 16670417611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16670417861) 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, 667103 + ... + 691640.

It is an arithmetic number, because the mean of its divisors is an integer number (4167947220).

Almost surely, 2^16670417867 is an apocalyptic number.

16670417867 is a deficient number, since it is larger than the sum of its proper divisors (1371013).

16670417867 is a wasteful number, since it uses less digits than its factorization.

16670417867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371012.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 16670417867 in words is "sixteen billion, six hundred seventy million, four hundred seventeen thousand, eight hundred sixty-seven".