165344680 has 16 divisors (see below), whose sum is σ = 372025620. Its totient is φ = 66137856.

The previous prime is 165344653. The next prime is 165344687. The reversal of 165344680 is 86443561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 164916964 + 427716 = 12842^2 + 654^2 .

It is not an unprimeable number, because it can be changed into a prime (165344687) 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, 2066769 + ... + 2066848.

Almost surely, 2^165344680 is an apocalyptic number.

165344680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165344680 is an abundant number, since it is smaller than the sum of its proper divisors (206680940).

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

165344680 is a wasteful number, since it uses less digits than its factorization.

165344680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133628 (or 4133624 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 165344680 is about 12858.6422300335. The cubic root of 165344680 is about 548.8623094345.

The spelling of 165344680 in words is "one hundred sixty-five million, three hundred forty-four thousand, six hundred eighty".