213388665204 has 96 divisors (see below), whose sum is σ = 586612301184. Its totient is φ = 59519877120.

The previous prime is 213388665197. The next prime is 213388665221. The reversal of 213388665204 is 402566883312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429612 + ... + 781884.

It is an arithmetic number, because the mean of its divisors is an integer number (6110544804).

Almost surely, 2^213388665204 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 213388665204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293306150592).

213388665204 is an abundant number, since it is smaller than the sum of its proper divisors (373223635980).

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

213388665204 is a wasteful number, since it uses less digits than its factorization.

213388665204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352657 (or 352655 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 213388665204 in words is "two hundred thirteen billion, three hundred eighty-eight million, six hundred sixty-five thousand, two hundred four".