665652060 has 48 divisors (see below), whose sum is σ = 2070919200. Its totient is φ = 177507072.

The previous prime is 665652049. The next prime is 665652073. The reversal of 665652060 is 60256566.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615805 + ... + 616884.

It is an arithmetic number, because the mean of its divisors is an integer number (43144150).

Almost surely, 2^665652060 is an apocalyptic number.

665652060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

665652060 is an abundant number, since it is smaller than the sum of its proper divisors (1405267140).

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

665652060 is a wasteful number, since it uses less digits than its factorization.

665652060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232707 (or 1232699 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 665652060 is about 25800.2337198716. The cubic root of 665652060 is about 873.1370694426.

The spelling of 665652060 in words is "six hundred sixty-five million, six hundred fifty-two thousand, sixty".