211984255064 has 16 divisors (see below), whose sum is σ = 418389977400. Its totient is φ = 100413594432.

The previous prime is 211984255033. The next prime is 211984255123. The reversal of 211984255064 is 460552489112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697316477 + ... + 697316780.

Almost surely, 2^211984255064 is an apocalyptic number.

It is an amenable number.

211984255064 is a deficient number, since it is larger than the sum of its proper divisors (206405722336).

211984255064 is a wasteful number, since it uses less digits than its factorization.

211984255064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394633282 (or 1394633278 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 211984255064 in words is "two hundred eleven billion, nine hundred eighty-four million, two hundred fifty-five thousand, sixty-four".