20608624433 has 2 divisors, whose sum is σ = 20608624434. Its totient is φ = 20608624432.

The previous prime is 20608624429. The next prime is 20608624501. The reversal of 20608624433 is 33442680602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11093987584 + 9514636849 = 105328^2 + 97543^2 .

It is a cyclic number.

It is not a de Polignac number, because 20608624433 - 2² = 20608624429 is a prime.

It is not a weakly prime, because it can be changed into another prime (20608624423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10304312216 + 10304312217.

It is an arithmetic number, because the mean of its divisors is an integer number (10304312217).

Almost surely, 2^20608624433 is an apocalyptic number.

It is an amenable number.

20608624433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20608624433 is an equidigital number, since it uses as much as digits as its factorization.

20608624433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 20608624433 in words is "twenty billion, six hundred eight million, six hundred twenty-four thousand, four hundred thirty-three".