165487020 has 24 divisors (see below), whose sum is σ = 463363824. Its totient is φ = 44129856.

The previous prime is 165487009. The next prime is 165487037. The reversal of 165487020 is 20784561.

165487020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1378999 + ... + 1379118.

It is an arithmetic number, because the mean of its divisors is an integer number (19306826).

Almost surely, 2^165487020 is an apocalyptic number.

165487020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165487020 is an abundant number, since it is smaller than the sum of its proper divisors (297876804).

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

165487020 is a wasteful number, since it uses less digits than its factorization.

165487020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758129 (or 2758127 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 165487020 is about 12864.1758383505. The cubic root of 165487020 is about 549.0197636556.

The spelling of 165487020 in words is "one hundred sixty-five million, four hundred eighty-seven thousand, twenty".