20636315452 has 12 divisors (see below), whose sum is σ = 36117588136. Its totient is φ = 10317004560.

The previous prime is 20636315437. The next prime is 20636315467. The reversal of 20636315452 is 25451363602.

It is an interprime number because it is at equal distance from previous prime (20636315437) and next prime (20636315467).

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 247383 + ... + 320110.

Almost surely, 2^20636315452 is an apocalyptic number.

It is an amenable number.

20636315452 is a deficient number, since it is larger than the sum of its proper divisors (15481272684).

20636315452 is a wasteful number, since it uses less digits than its factorization.

20636315452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576588 (or 576586 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 20636315452 in words is "twenty billion, six hundred thirty-six million, three hundred fifteen thousand, four hundred fifty-two".