168407966 has 4 divisors (see below), whose sum is σ = 252611952. Its totient is φ = 84203982.

The previous prime is 168407957. The next prime is 168408029. The reversal of 168407966 is 669704861.

It is a happy number.

168407966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669704861 = 7 ⋅95672123.

It is a super-2 number, since 2×168407966² = 56722486024514312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168407966.

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, 42101990 + ... + 42101993.

It is an arithmetic number, because the mean of its divisors is an integer number (63152988).

Almost surely, 2^168407966 is an apocalyptic number.

168407966 is a deficient number, since it is larger than the sum of its proper divisors (84203986).

168407966 is an equidigital number, since it uses as much as digits as its factorization.

168407966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84203985.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 168407966 is about 12977.2094843229. The cubic root of 168407966 is about 552.2311199613.

The spelling of 168407966 in words is "one hundred sixty-eight million, four hundred seven thousand, nine hundred sixty-six".