165141680 has 40 divisors (see below), whose sum is σ = 418861584. Its totient is φ = 60051200.

The previous prime is 165141677. The next prime is 165141707. The reversal of 165141680 is 86141561.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92951 + ... + 94710.

Almost surely, 2^165141680 is an apocalyptic number.

165141680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165141680 is an abundant number, since it is smaller than the sum of its proper divisors (253719904).

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

165141680 is a wasteful number, since it uses less digits than its factorization.

165141680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187685 (or 187679 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 165141680 is about 12850.7462818313. The cubic root of 165141680 is about 548.6375976834.

The spelling of 165141680 in words is "one hundred sixty-five million, one hundred forty-one thousand, six hundred eighty".