2161650606 has 32 divisors (see below), whose sum is σ = 4579620768. Its totient is φ = 677867520.

The previous prime is 2161650599. The next prime is 2161650611. The reversal of 2161650606 is 6060561612.

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, 406686 + ... + 411966.

It is an arithmetic number, because the mean of its divisors is an integer number (143113149).

Almost surely, 2^2161650606 is an apocalyptic number.

2161650606 is an abundant number, since it is smaller than the sum of its proper divisors (2417970162).

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

2161650606 is a wasteful number, since it uses less digits than its factorization.

2161650606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2161650606 is about 46493.5544565050. The cubic root of 2161650606 is about 1292.9900008139.

The spelling of 2161650606 in words is "two billion, one hundred sixty-one million, six hundred fifty thousand, six hundred six".