2169549066 has 16 divisors (see below), whose sum is σ = 4339778688. Its totient is φ = 723069600.

The previous prime is 2169549007. The next prime is 2169549101. The reversal of 2169549066 is 6609459612.

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, 19231 + ... + 68621.

It is an arithmetic number, because the mean of its divisors is an integer number (271236168).

Almost surely, 2^2169549066 is an apocalyptic number.

2169549066 is an abundant number, since it is smaller than the sum of its proper divisors (2170229622).

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

2169549066 is a wasteful number, since it uses less digits than its factorization.

2169549066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56717.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 2169549066 is about 46578.4184574788. The cubic root of 2169549066 is about 1294.5629063075.

The spelling of 2169549066 in words is "two billion, one hundred sixty-nine million, five hundred forty-nine thousand, sixty-six".