20476503601 has 2 divisors, whose sum is σ = 20476503602. Its totient is φ = 20476503600.

The previous prime is 20476503569. The next prime is 20476503611. The reversal of 20476503601 is 10630567402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19980105201 + 496398400 = 141351^2 + 22280^2 .

It is a cyclic number.

It is not a de Polignac number, because 20476503601 - 2⁵ = 20476503569 is a prime.

It is not a weakly prime, because it can be changed into another prime (20476503611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10238251800 + 10238251801.

It is an arithmetic number, because the mean of its divisors is an integer number (10238251801).

Almost surely, 2^20476503601 is an apocalyptic number.

It is an amenable number.

20476503601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20476503601 is an equidigital number, since it uses as much as digits as its factorization.

20476503601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 20476503601 in words is "twenty billion, four hundred seventy-six million, five hundred three thousand, six hundred one".