660312254422 has 4 divisors (see below), whose sum is σ = 990468381636. Its totient is φ = 330156127210.

The previous prime is 660312254341. The next prime is 660312254471. The reversal of 660312254422 is 224452213066.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165078063604 + ... + 165078063607.

It is an arithmetic number, because the mean of its divisors is an integer number (247617095409).

Almost surely, 2^660312254422 is an apocalyptic number.

660312254422 is a deficient number, since it is larger than the sum of its proper divisors (330156127214).

660312254422 is a wasteful number, since it uses less digits than its factorization.

660312254422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330156127213.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 660312254422 its reverse (224452213066), we get a palindrome (884764467488).

The spelling of 660312254422 in words is "six hundred sixty billion, three hundred twelve million, two hundred fifty-four thousand, four hundred twenty-two".