211164621404 has 24 divisors (see below), whose sum is σ = 405462719088. Its totient is φ = 95429095040.

The previous prime is 211164621377. The next prime is 211164621469. The reversal of 211164621404 is 404126461112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13862897 + ... + 13878120.

It is an arithmetic number, because the mean of its divisors is an integer number (16894279962).

Almost surely, 2^211164621404 is an apocalyptic number.

It is an amenable number.

211164621404 is a deficient number, since it is larger than the sum of its proper divisors (194298097684).

211164621404 is a wasteful number, since it uses less digits than its factorization.

211164621404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27741205 (or 27741203 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 211164621404 in words is "two hundred eleven billion, one hundred sixty-four million, six hundred twenty-one thousand, four hundred four".