660464420602 has 32 divisors (see below), whose sum is σ = 1213383036672. Its totient is φ = 263431833984.

The previous prime is 660464420509. The next prime is 660464420611. The reversal of 660464420602 is 206024464066.

It is a super-2 number, since 2×660464420602² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27706083 + ... + 27729910.

It is an arithmetic number, because the mean of its divisors is an integer number (37918219896).

Almost surely, 2^660464420602 is an apocalyptic number.

660464420602 is a deficient number, since it is larger than the sum of its proper divisors (552918616070).

660464420602 is a wasteful number, since it uses less digits than its factorization.

660464420602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55436062.

The product of its (nonzero) digits is 331776, while the sum is 40.

Adding to 660464420602 its reverse (206024464066), we get a palindrome (866488884668).

The spelling of 660464420602 in words is "six hundred sixty billion, four hundred sixty-four million, four hundred twenty thousand, six hundred two".