20634302210 has 8 divisors (see below), whose sum is σ = 37141743996. Its totient is φ = 8253720880.

The previous prime is 20634302207. The next prime is 20634302231. The reversal of 20634302210 is 1220343602.

It can be written as a sum of positive squares in 2 ways, for example, as 20351019649 + 283282561 = 142657^2 + 16831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20634302210² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031715101 + ... + 1031715120.

Almost surely, 2^20634302210 is an apocalyptic number.

20634302210 is a deficient number, since it is larger than the sum of its proper divisors (16507441786).

20634302210 is a wasteful number, since it uses less digits than its factorization.

20634302210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063430228.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20634302210 its reverse (1220343602), we get a palindrome (21854645812).

The spelling of 20634302210 in words is "twenty billion, six hundred thirty-four million, three hundred two thousand, two hundred ten".