660201404 has 12 divisors (see below), whose sum is σ = 1161808200. Its totient is φ = 328256208.

The previous prime is 660201401. The next prime is 660201413. The reversal of 660201404 is 404102066.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 660201404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660201401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460319 + ... + 461750.

It is an arithmetic number, because the mean of its divisors is an integer number (96817350).

Almost surely, 2^660201404 is an apocalyptic number.

It is an amenable number.

660201404 is a deficient number, since it is larger than the sum of its proper divisors (501606796).

660201404 is a wasteful number, since it uses less digits than its factorization.

660201404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922252 (or 922250 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 660201404 is about 25694.3846783689. The cubic root of 660201404 is about 870.7473228168.

The spelling of 660201404 in words is "six hundred sixty million, two hundred one thousand, four hundred four".