211066828988 has 24 divisors (see below), whose sum is σ = 370875229200. Its totient is φ = 105102764928.

The previous prime is 211066828901. The next prime is 211066829047. The reversal of 211066828988 is 889828660112.

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, 3039803 + ... + 3108461.

It is an arithmetic number, because the mean of its divisors is an integer number (15453134550).

Almost surely, 2^211066828988 is an apocalyptic number.

It is an amenable number.

211066828988 is a deficient number, since it is larger than the sum of its proper divisors (159808400212).

211066828988 is a wasteful number, since it uses less digits than its factorization.

211066828988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71789 (or 71787 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 59.

The spelling of 211066828988 in words is "two hundred eleven billion, sixty-six million, eight hundred twenty-eight thousand, nine hundred eighty-eight".