665745150466 has 32 divisors (see below), whose sum is σ = 1103576918400. Its totient is φ = 298694839680.

The previous prime is 665745150451. The next prime is 665745150467. The reversal of 665745150466 is 664051547566.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (665745150467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102870 + ... + 1158478.

It is an arithmetic number, because the mean of its divisors is an integer number (34486778700).

Almost surely, 2^665745150466 is an apocalyptic number.

665745150466 is a deficient number, since it is larger than the sum of its proper divisors (437831767934).

665745150466 is a wasteful number, since it uses less digits than its factorization.

665745150466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055994.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 665745150466 in words is "six hundred sixty-five billion, seven hundred forty-five million, one hundred fifty thousand, four hundred sixty-six".