660602442406 has 32 divisors (see below), whose sum is σ = 1041928386048. Its totient is φ = 313515343680.

The previous prime is 660602442377. The next prime is 660602442427. The reversal of 660602442406 is 604244206066.

It is a congruent number.

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, 17898151 + ... + 17935021.

It is an arithmetic number, because the mean of its divisors is an integer number (32560262064).

Almost surely, 2^660602442406 is an apocalyptic number.

660602442406 is a deficient number, since it is larger than the sum of its proper divisors (381325943642).

660602442406 is a wasteful number, since it uses less digits than its factorization.

660602442406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39876.

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

The spelling of 660602442406 in words is "six hundred sixty billion, six hundred two million, four hundred forty-two thousand, four hundred six".