20302514405 has 8 divisors (see below), whose sum is σ = 24762411384. Its totient is φ = 15975748800.

The previous prime is 20302514383. The next prime is 20302514413. The reversal of 20302514405 is 50441520302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2226518596 + 18075995809 = 47186^2 + 134447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20302514405 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 33282506 + ... + 33283115.

It is an arithmetic number, because the mean of its divisors is an integer number (3095301423).

Almost surely, 2^20302514405 is an apocalyptic number.

It is an amenable number.

20302514405 is a deficient number, since it is larger than the sum of its proper divisors (4459896979).

20302514405 is an equidigital number, since it uses as much as digits as its factorization.

20302514405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66565687.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20302514405 in words is "twenty billion, three hundred two million, five hundred fourteen thousand, four hundred five".