210635216140 has 12 divisors (see below), whose sum is σ = 442333953936. Its totient is φ = 84254086448.

The previous prime is 210635216119. The next prime is 210635216147. The reversal of 210635216140 is 41612536012.

It is a happy number.

210635216140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (210635216147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5265880384 + ... + 5265880423.

It is an arithmetic number, because the mean of its divisors is an integer number (36861162828).

Almost surely, 2^210635216140 is an apocalyptic number.

210635216140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210635216140 is an abundant number, since it is smaller than the sum of its proper divisors (231698737796).

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

210635216140 is a wasteful number, since it uses less digits than its factorization.

210635216140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531760816 (or 10531760814 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 210635216140 in words is "two hundred ten billion, six hundred thirty-five million, two hundred sixteen thousand, one hundred forty".