20346503634105 has 32 divisors (see below), whose sum is σ = 35521373657088. Its totient is φ = 9862894680000.

The previous prime is 20346503634091. The next prime is 20346503634157. The reversal of 20346503634105 is 50143630564302.

It is not a de Polignac number, because 20346503634105 - 2⁴ = 20346503634089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12193579 + ... + 13761408.

It is an arithmetic number, because the mean of its divisors is an integer number (1110042926784).

Almost surely, 2^{20346503634105} is an apocalyptic number.

It is an amenable number.

20346503634105 is a deficient number, since it is larger than the sum of its proper divisors (15174870022983).

20346503634105 is a wasteful number, since it uses less digits than its factorization.

20346503634105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25959757.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 20346503634105 in words is "twenty trillion, three hundred forty-six billion, five hundred three million, six hundred thirty-four thousand, one hundred five".