213140660488 has 64 divisors (see below), whose sum is σ = 465464776320. Its totient is φ = 89599910400.

The previous prime is 213140660483. The next prime is 213140660489. The reversal of 213140660488 is 884066041312.

It is not an unprimeable number, because it can be changed into a prime (213140660483) 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, 17448703 + ... + 17460913.

It is an arithmetic number, because the mean of its divisors is an integer number (7272887130).

Almost surely, 2^213140660488 is an apocalyptic number.

213140660488 is a gapful number since it is divisible by the number (28) 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 213140660488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232732388160).

213140660488 is an abundant number, since it is smaller than the sum of its proper divisors (252324115832).

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

213140660488 is a wasteful number, since it uses less digits than its factorization.

213140660488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158 (or 18154 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 213140660488 in words is "two hundred thirteen billion, one hundred forty million, six hundred sixty thousand, four hundred eighty-eight".