660015230412 has 48 divisors (see below), whose sum is σ = 1544411860992. Its totient is φ = 219380155200.

The previous prime is 660015230383. The next prime is 660015230429. The reversal of 660015230412 is 214032510066.

It is a self number, because there is not a number n which added to its sum of digits gives 660015230412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23641662 + ... + 23669562.

It is an arithmetic number, because the mean of its divisors is an integer number (32175247104).

Almost surely, 2^660015230412 is an apocalyptic number.

It is an amenable number.

660015230412 is an abundant number, since it is smaller than the sum of its proper divisors (884396630580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660015230412 is a wasteful number, since it uses less digits than its factorization.

660015230412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33438 (or 33436 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 660015230412 its reverse (214032510066), we get a palindrome (874047740478).

The spelling of 660015230412 in words is "six hundred sixty billion, fifteen million, two hundred thirty thousand, four hundred twelve".