20136537335603 has 16 divisors (see below), whose sum is σ = 21725807559456. Its totient is φ = 18553037126400.

The previous prime is 20136537335591. The next prime is 20136537335623. The reversal of 20136537335603 is 30653373563102.

It is a cyclic number.

It is not a de Polignac number, because 20136537335603 - 2¹⁰ = 20136537334579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20136537335623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40356200 + ... + 40852122.

It is an arithmetic number, because the mean of its divisors is an integer number (1357862972466).

Almost surely, 2^{20136537335603} is an apocalyptic number.

20136537335603 is a deficient number, since it is larger than the sum of its proper divisors (1589270223853).

20136537335603 is a wasteful number, since it uses less digits than its factorization.

20136537335603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501734.

The product of its (nonzero) digits is 3061800, while the sum is 47.

The spelling of 20136537335603 in words is "twenty trillion, one hundred thirty-six billion, five hundred thirty-seven million, three hundred thirty-five thousand, six hundred three".