20620432607 has 2 divisors, whose sum is σ = 20620432608. Its totient is φ = 20620432606.

The previous prime is 20620432603. The next prime is 20620432633. The reversal of 20620432607 is 70623402602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20620432607 - 2² = 20620432603 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20620432603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10310216303 + 10310216304.

It is an arithmetic number, because the mean of its divisors is an integer number (10310216304).

Almost surely, 2^20620432607 is an apocalyptic number.

20620432607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20620432607 is an equidigital number, since it uses as much as digits as its factorization.

20620432607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 20620432607 in words is "twenty billion, six hundred twenty million, four hundred thirty-two thousand, six hundred seven".