661160106 has 24 divisors (see below), whose sum is σ = 1433153124. Its totient is φ = 220288320.

The previous prime is 661160099. The next prime is 661160147. The reversal of 661160106 is 601061166.

It can be written as a sum of positive squares in 2 ways, for example, as 520524225 + 140635881 = 22815^2 + 11859^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 661160106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41326 + ... + 55046.

Almost surely, 2^661160106 is an apocalyptic number.

661160106 is an abundant number, since it is smaller than the sum of its proper divisors (771993018).

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

661160106 is a wasteful number, since it uses less digits than its factorization.

661160106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406 (or 16403 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 661160106 is about 25713.0337766666. The cubic root of 661160106 is about 871.1686000441.

The spelling of 661160106 in words is "six hundred sixty-one million, one hundred sixty thousand, one hundred six".