665461034 has 32 divisors (see below), whose sum is σ = 1178343936. Its totient is φ = 275934960.

The previous prime is 665461033. The next prime is 665461051. The reversal of 665461034 is 430164566.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 665460985 and 665461003.

It is not an unprimeable number, because it can be changed into a prime (665461033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59249 + ... + 69579.

It is an arithmetic number, because the mean of its divisors is an integer number (36823248).

Almost surely, 2^665461034 is an apocalyptic number.

665461034 is a deficient number, since it is larger than the sum of its proper divisors (512882902).

665461034 is a wasteful number, since it uses less digits than its factorization.

665461034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10490.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 665461034 is about 25796.5314335087. The cubic root of 665461034 is about 873.0535383961.

The spelling of 665461034 in words is "six hundred sixty-five million, four hundred sixty-one thousand, thirty-four".