20244736513 has 8 divisors (see below), whose sum is σ = 20368327616. Its totient is φ = 20121274800.

The previous prime is 20244736511. The next prime is 20244736559. The reversal of 20244736513 is 31563744202.

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

It is a cyclic number.

It is not a de Polignac number, because 20244736513 - 2¹ = 20244736511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244736511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291358 + ... + 354088.

It is an arithmetic number, because the mean of its divisors is an integer number (2546040952).

Almost surely, 2^20244736513 is an apocalyptic number.

It is an amenable number.

20244736513 is a deficient number, since it is larger than the sum of its proper divisors (123591103).

20244736513 is a wasteful number, since it uses less digits than its factorization.

20244736513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64695.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 20244736513 in words is "twenty billion, two hundred forty-four million, seven hundred thirty-six thousand, five hundred thirteen".