165454656 has 28 divisors (see below), whose sum is σ = 437765952. Its totient is φ = 55151488.

The previous prime is 165454651. The next prime is 165454687. The reversal of 165454656 is 656454561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165454651) 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, 430680 + ... + 431063.

Almost surely, 2^165454656 is an apocalyptic number.

165454656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165454656 is an abundant number, since it is smaller than the sum of its proper divisors (272311296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165454656 is an equidigital number, since it uses as much as digits as its factorization.

165454656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861758 (or 861748 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 165454656 is about 12862.9178649325. The cubic root of 165454656 is about 548.9839710517.

The spelling of 165454656 in words is "one hundred sixty-five million, four hundred fifty-four thousand, six hundred fifty-six".