210716702210651 has 48 divisors (see below), whose sum is σ = 274811355555840. Its totient is φ = 157763088288000.

The previous prime is 210716702210479. The next prime is 210716702210671. The reversal of 210716702210651 is 156012207617012.

It is a de Polignac number, because none of the positive numbers 2^k-210716702210651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210716702210599 and 210716702210608.

It is not an unprimeable number, because it can be changed into a prime (210716702210671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13966151 + ... + 24829151.

It is an arithmetic number, because the mean of its divisors is an integer number (5725236574080).

Almost surely, 2^{210716702210651} is an apocalyptic number.

210716702210651 is a deficient number, since it is larger than the sum of its proper divisors (64094653345189).

210716702210651 is a wasteful number, since it uses less digits than its factorization.

210716702210651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863916 (or 10863903 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

Adding to 210716702210651 its reverse (156012207617012), we get a palindrome (366728909827663).

The spelling of 210716702210651 in words is "two hundred ten trillion, seven hundred sixteen billion, seven hundred two million, two hundred ten thousand, six hundred fifty-one".