10518220485 has 24 divisors (see below), whose sum is σ = 18819700224. Its totient is φ = 5428758240.

The previous prime is 10518220463. The next prime is 10518220487. The reversal of 10518220485 is 58402281501.

It is not a de Polignac number, because 10518220485 - 2¹⁰ = 10518219461 is a prime.

It is a super-2 number, since 2×10518220485² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10518220487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3768577 + ... + 3771366.

It is an arithmetic number, because the mean of its divisors is an integer number (784154176).

Almost surely, 2^10518220485 is an apocalyptic number.

10518220485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10518220485 is a deficient number, since it is larger than the sum of its proper divisors (8301479739).

10518220485 is a wasteful number, since it uses less digits than its factorization.

10518220485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539985 (or 7539982 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 10518220485 in words is "ten billion, five hundred eighteen million, two hundred twenty thousand, four hundred eighty-five".