660506411623616 has 112 divisors (see below), whose sum is σ = 1405198818938880. Its totient is φ = 307338779320320.

The previous prime is 660506411623613. The next prime is 660506411623627. The reversal of 660506411623616 is 616326114605066.

It is not an unprimeable number, because it can be changed into a prime (660506411623613) 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, 30778400 + ... + 47626911.

It is an arithmetic number, because the mean of its divisors is an integer number (12546418026240).

Almost surely, 2^{660506411623616} is an apocalyptic number.

It is an amenable number.

660506411623616 is an abundant number, since it is smaller than the sum of its proper divisors (744692407315264).

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

660506411623616 is a wasteful number, since it uses less digits than its factorization.

660506411623616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78405502 (or 78405492 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 660506411623616 in words is "six hundred sixty trillion, five hundred six billion, four hundred eleven million, six hundred twenty-three thousand, six hundred sixteen".