20534501016105 has 16 divisors (see below), whose sum is σ = 33174184168320. Its totient is φ = 10845406361088.

The previous prime is 20534501016101. The next prime is 20534501016179. The reversal of 20534501016105 is 50161010543502.

It is not a de Polignac number, because 20534501016105 - 2² = 20534501016101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20534501016101) 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, 6645468040 + ... + 6645471129.

It is an arithmetic number, because the mean of its divisors is an integer number (2073386510520).

Almost surely, 2^{20534501016105} is an apocalyptic number.

It is an amenable number.

20534501016105 is a deficient number, since it is larger than the sum of its proper divisors (12639683152215).

20534501016105 is a wasteful number, since it uses less digits than its factorization.

20534501016105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13290939280.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 20534501016105 its reverse (50161010543502), we get a palindrome (70695511559607).

The spelling of 20534501016105 in words is "twenty trillion, five hundred thirty-four billion, five hundred one million, sixteen thousand, one hundred five".