165672080 has 40 divisors (see below), whose sum is σ = 440215872. Its totient is φ = 56801664.

The previous prime is 165672079. The next prime is 165672107. The reversal of 165672080 is 80276561.

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

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 165672080.

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, 147362 + ... + 148481.

Almost surely, 2^165672080 is an apocalyptic number.

165672080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165672080 is an abundant number, since it is smaller than the sum of its proper divisors (274543792).

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

165672080 is a wasteful number, since it uses less digits than its factorization.

165672080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295863 (or 295857 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 165672080 is about 12871.3666718030. The cubic root of 165672080 is about 549.2243391124.

The spelling of 165672080 in words is "one hundred sixty-five million, six hundred seventy-two thousand, eighty".