210002514424664 has 64 divisors (see below), whose sum is σ = 428581291471200. Its totient is φ = 95887811948544.

The previous prime is 210002514424639. The next prime is 210002514424669. The reversal of 210002514424664 is 466424415200012.

It is a super-2 number, since 2×210002514424664² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002514424669) 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, 21981074 + ... + 30052830.

Almost surely, 2^{210002514424664} 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 210002514424664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214290645735600).

210002514424664 is an abundant number, since it is smaller than the sum of its proper divisors (218578777046536).

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

210002514424664 is a wasteful number, since it uses less digits than its factorization.

210002514424664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074452 (or 8074448 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

Adding to 210002514424664 its reverse (466424415200012), we get a palindrome (676426929624676).

The spelling of 210002514424664 in words is "two hundred ten trillion, two billion, five hundred fourteen million, four hundred twenty-four thousand, six hundred sixty-four".