665434060 has 36 divisors (see below), whose sum is σ = 1484460432. Its totient is φ = 250514176.

The previous prime is 665434057. The next prime is 665434067. The reversal of 665434060 is 60434566.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (665434067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51784 + ... + 63343.

It is an arithmetic number, because the mean of its divisors is an integer number (41235012).

Almost surely, 2^665434060 is an apocalyptic number.

It is an amenable number.

665434060 is an abundant number, since it is smaller than the sum of its proper divisors (819026372).

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

665434060 is a wasteful number, since it uses less digits than its factorization.

665434060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115170 (or 115151 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 665434060 is about 25796.0086059840. The cubic root of 665434060 is about 873.0417420308.

The spelling of 665434060 in words is "six hundred sixty-five million, four hundred thirty-four thousand, sixty".