16686870022 has 4 divisors (see below), whose sum is σ = 25030305036. Its totient is φ = 8343435010.

The previous prime is 16686870017. The next prime is 16686870043. The reversal of 16686870022 is 22007868661.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16686870022² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171717504 + ... + 4171717507.

It is an arithmetic number, because the mean of its divisors is an integer number (6257576259).

Almost surely, 2^16686870022 is an apocalyptic number.

16686870022 is a deficient number, since it is larger than the sum of its proper divisors (8343435014).

16686870022 is an equidigital number, since it uses as much as digits as its factorization.

16686870022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343435013.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 16686870022 in words is "sixteen billion, six hundred eighty-six million, eight hundred seventy thousand, twenty-two".