212006871564 has 48 divisors (see below), whose sum is σ = 516239958528. Its totient is φ = 67589936128.

The previous prime is 212006871563. The next prime is 212006871569. The reversal of 212006871564 is 465178600212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212006871563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3460204 + ... + 3520940.

It is an arithmetic number, because the mean of its divisors is an integer number (10754999136).

Almost surely, 2^212006871564 is an apocalyptic number.

It is an amenable number.

212006871564 is an abundant number, since it is smaller than the sum of its proper divisors (304233086964).

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

212006871564 is a wasteful number, since it uses less digits than its factorization.

212006871564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73414 (or 73412 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 212006871564 in words is "two hundred twelve billion, six million, eight hundred seventy-one thousand, five hundred sixty-four".