660506411623611 has 32 divisors (see below), whose sum is σ = 1008543910809088. Its totient is φ = 376660777224960.

The previous prime is 660506411623607. The next prime is 660506411623613. The reversal of 660506411623611 is 116326114605066.

It is not a de Polignac number, because 660506411623611 - 2² = 660506411623607 is a prime.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 52328631 + ... + 63712623.

It is an arithmetic number, because the mean of its divisors is an integer number (31516997212784).

Almost surely, 2^{660506411623611} is an apocalyptic number.

660506411623611 is a deficient number, since it is larger than the sum of its proper divisors (348037499185477).

660506411623611 is a wasteful number, since it uses less digits than its factorization.

660506411623611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389651.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 660506411623611 in words is "six hundred sixty trillion, five hundred six billion, four hundred eleven million, six hundred twenty-three thousand, six hundred eleven".