20136605453012 has 6 divisors (see below), whose sum is σ = 35239059542778. Its totient is φ = 10068302726504.

The previous prime is 20136605453011. The next prime is 20136605453039. The reversal of 20136605453012 is 21035450663102.

It can be written as a sum of positive squares in only one way, i.e., 20092322142916 + 44283310096 = 4482446^2 + 210436^2 .

It is a super-2 number, since 2×20136605453012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136605453011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2517075681623 + ... + 2517075681630.

It is an arithmetic number, because the mean of its divisors is an integer number (5873176590463).

Almost surely, 2^{20136605453012} is an apocalyptic number.

It is an amenable number.

20136605453012 is a deficient number, since it is larger than the sum of its proper divisors (15102454089766).

20136605453012 is a wasteful number, since it uses less digits than its factorization.

20136605453012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034151363257 (or 5034151363255 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 20136605453012 in words is "twenty trillion, one hundred thirty-six billion, six hundred five million, four hundred fifty-three thousand, twelve".