610666601566 has 32 divisors (see below), whose sum is σ = 1113194197440. Its totient is φ = 245262114816.

The previous prime is 610666601557. The next prime is 610666601581. The reversal of 610666601566 is 665106666016.

610666601566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5450611 + ... + 5561518.

It is an arithmetic number, because the mean of its divisors is an integer number (34787318670).

Almost surely, 2^610666601566 is an apocalyptic number.

610666601566 is a deficient number, since it is larger than the sum of its proper divisors (502527595874).

610666601566 is a wasteful number, since it uses less digits than its factorization.

610666601566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012388.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 610666601566 in words is "six hundred ten billion, six hundred sixty-six million, six hundred one thousand, five hundred sixty-six".