665072950 has 48 divisors (see below), whose sum is σ = 1283600880. Its totient is φ = 256072320.

The previous prime is 665072927. The next prime is 665072953. The reversal of 665072950 is 59270566.

665072950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665072953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 757912 + ... + 758788.

It is an arithmetic number, because the mean of its divisors is an integer number (26741685).

Almost surely, 2^665072950 is an apocalyptic number.

665072950 is a deficient number, since it is larger than the sum of its proper divisors (618527930).

665072950 is a wasteful number, since it uses less digits than its factorization.

665072950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 665072950 is about 25789.0083174984. The cubic root of 665072950 is about 872.8837894163.

The spelling of 665072950 in words is "six hundred sixty-five million, seventy-two thousand, nine hundred fifty".