20608326290 has 16 divisors (see below), whose sum is σ = 37096856280. Its totient is φ = 8242915200.

The previous prime is 20608326199. The next prime is 20608326293. The reversal of 20608326290 is 9262380602.

It can be written as a sum of positive squares in 4 ways, for example, as 20054241769 + 554084521 = 141613^2 + 23539^2 .

It is a super-2 number, since 2×20608326290² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20608326293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228740 + ... + 305840.

Almost surely, 2^20608326290 is an apocalyptic number.

20608326290 is a deficient number, since it is larger than the sum of its proper divisors (16488529990).

20608326290 is a wasteful number, since it uses less digits than its factorization.

20608326290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103837.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 20608326290 in words is "twenty billion, six hundred eight million, three hundred twenty-six thousand, two hundred ninety".