20014366409 has 2 divisors, whose sum is σ = 20014366410. Its totient is φ = 20014366408.

The previous prime is 20014366399. The next prime is 20014366417. The reversal of 20014366409 is 90466341002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18040519225 + 1973847184 = 134315^2 + 44428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20014366409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20014366109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007183204 + 10007183205.

It is an arithmetic number, because the mean of its divisors is an integer number (10007183205).

Almost surely, 2^20014366409 is an apocalyptic number.

It is an amenable number.

20014366409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014366409 is an equidigital number, since it uses as much as digits as its factorization.

20014366409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 20014366409 in words is "twenty billion, fourteen million, three hundred sixty-six thousand, four hundred nine".