213625866630 has 192 divisors, whose sum is σ = 577703073024. Its totient is φ = 50491795200.

The previous prime is 213625866613. The next prime is 213625866677. The reversal of 213625866630 is 36668526312.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213625866630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 128149057 + ... + 128150723.

It is an arithmetic number, because the mean of its divisors is an integer number (3008870172).

Almost surely, 2^213625866630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213625866630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288851536512).

213625866630 is an abundant number, since it is smaller than the sum of its proper divisors (364077206394).

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

213625866630 is a wasteful number, since it uses less digits than its factorization.

213625866630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563 (or 2552 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 213625866630 in words is "two hundred thirteen billion, six hundred twenty-five million, eight hundred sixty-six thousand, six hundred thirty".