20260547336505 has 32 divisors (see below), whose sum is σ = 37048499647488. Its totient is φ = 9261804081600.

The previous prime is 20260547336443. The next prime is 20260547336507. The reversal of 20260547336505 is 50563374506202.

It is not a de Polignac number, because 20260547336505 - 2⁷ = 20260547336377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20260547336507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4529350 + ... + 7812560.

It is an arithmetic number, because the mean of its divisors is an integer number (1157765613984).

Almost surely, 2^{20260547336505} is an apocalyptic number.

It is an amenable number.

20260547336505 is a deficient number, since it is larger than the sum of its proper divisors (16787952310983).

20260547336505 is a wasteful number, since it uses less digits than its factorization.

20260547336505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341997.

The product of its (nonzero) digits is 4536000, while the sum is 48.

The spelling of 20260547336505 in words is "twenty trillion, two hundred sixty billion, five hundred forty-seven million, three hundred thirty-six thousand, five hundred five".