20005106735734 has 16 divisors (see below), whose sum is σ = 30040120857600. Its totient is φ = 9991733662504.

The previous prime is 20005106735729. The next prime is 20005106735737. The reversal of 20005106735734 is 43753760150002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005106735737) 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, 88752027 + ... + 88977145.

It is an arithmetic number, because the mean of its divisors is an integer number (1877507553600).

Almost surely, 2^{20005106735734} is an apocalyptic number.

20005106735734 is a deficient number, since it is larger than the sum of its proper divisors (10035014121866).

20005106735734 is a wasteful number, since it uses less digits than its factorization.

20005106735734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272987.

The product of its (nonzero) digits is 529200, while the sum is 43.

Adding to 20005106735734 its reverse (43753760150002), we get a palindrome (63758866885736).

The spelling of 20005106735734 in words is "twenty trillion, five billion, one hundred six million, seven hundred thirty-five thousand, seven hundred thirty-four".