610661005166 has 16 divisors (see below), whose sum is σ = 979476073200. Its totient is φ = 284524636800.

The previous prime is 610661005151. The next prime is 610661005223. The reversal of 610661005166 is 661500166016.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88910516 + ... + 88917383.

It is an arithmetic number, because the mean of its divisors is an integer number (61217254575).

Almost surely, 2^610661005166 is an apocalyptic number.

610661005166 is a deficient number, since it is larger than the sum of its proper divisors (368815068034).

610661005166 is a wasteful number, since it uses less digits than its factorization.

610661005166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177828019.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 610661005166 in words is "six hundred ten billion, six hundred sixty-one million, five thousand, one hundred sixty-six".