20630622260 has 12 divisors (see below), whose sum is σ = 43324306788. Its totient is φ = 8252248896.

The previous prime is 20630622241. The next prime is 20630622329. The reversal of 20630622260 is 6222603602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8310510244 + 12320112016 = 91162^2 + 110996^2 .

It is a congruent number.

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, 515765537 + ... + 515765576.

It is an arithmetic number, because the mean of its divisors is an integer number (3610358899).

Almost surely, 2^20630622260 is an apocalyptic number.

20630622260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20630622260 is an abundant number, since it is smaller than the sum of its proper divisors (22693684528).

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

20630622260 is a wasteful number, since it uses less digits than its factorization.

20630622260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031531122 (or 1031531120 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 20630622260 in words is "twenty billion, six hundred thirty million, six hundred twenty-two thousand, two hundred sixty".