212208167864 has 192 divisors, whose sum is σ = 516386949120. Its totient is φ = 80819424000.

The previous prime is 212208167807. The next prime is 212208167881. The reversal of 212208167864 is 468761802212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43923929 + ... + 43928759.

It is an arithmetic number, because the mean of its divisors is an integer number (2689515360).

Almost surely, 2^212208167864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212208167864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258193474560).

212208167864 is an abundant number, since it is smaller than the sum of its proper divisors (304178781256).

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

212208167864 is a wasteful number, since it uses less digits than its factorization.

212208167864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090 (or 5079 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 212208167864 in words is "two hundred twelve billion, two hundred eight million, one hundred sixty-seven thousand, eight hundred sixty-four".