212522685943680 has 1152 divisors, whose sum is σ = 891226168822080. Its totient is φ = 46442314727424.

The previous prime is 212522685943663. The next prime is 212522685943741. The reversal of 212522685943680 is 86349586225212.

212522685943680 is a `hidden beast` number, since 2 + 1 + 2 + 5 + 2 + 2 + 6 + 8 + 594 + 36 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16079488432 + ... + 16079501648.

Almost surely, 2^{212522685943680} is an apocalyptic number.

212522685943680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212522685943680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445613084411040).

212522685943680 is an abundant number, since it is smaller than the sum of its proper divisors (678703482878400).

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

212522685943680 is a wasteful number, since it uses less digits than its factorization.

212522685943680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15756 (or 15734 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 63.

The spelling of 212522685943680 in words is "two hundred twelve trillion, five hundred twenty-two billion, six hundred eighty-five million, nine hundred forty-three thousand, six hundred eighty".