168992082 has 120 divisors (see below), whose sum is σ = 448994700. Its totient is φ = 47355840.

The previous prime is 168992071. The next prime is 168992093. The reversal of 168992082 is 280299861.

It is an interprime number because it is at equal distance from previous prime (168992071) and next prime (168992093).

It can be written as a sum of positive squares in 2 ways, for example, as 163558521 + 5433561 = 12789^2 + 2331^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 484044 + ... + 484392.

Almost surely, 2^168992082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168992082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224497350).

168992082 is an abundant number, since it is smaller than the sum of its proper divisors (280002618).

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

168992082 is a wasteful number, since it uses less digits than its factorization.

168992082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 168992082 is about 12999.6954579713. The cubic root of 168992082 is about 552.8688467480.

It can be divided in two parts, 16899 and 2082, that added together give a palindrome (18981).

The spelling of 168992082 in words is "one hundred sixty-eight million, nine hundred ninety-two thousand, eighty-two".