168464536 has 8 divisors (see below), whose sum is σ = 315871020. Its totient is φ = 84232264.

The previous prime is 168464533. The next prime is 168464563. The reversal of 168464536 is 635464861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 168464492 and 168464501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168464533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10529026 + ... + 10529041.

Almost surely, 2^168464536 is an apocalyptic number.

It is an amenable number.

168464536 is a deficient number, since it is larger than the sum of its proper divisors (147406484).

168464536 is a wasteful number, since it uses less digits than its factorization.

168464536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21058073 (or 21058069 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 168464536 is about 12979.3888916235. The cubic root of 168464536 is about 552.2929464452.

The spelling of 168464536 in words is "one hundred sixty-eight million, four hundred sixty-four thousand, five hundred thirty-six".