10551556516518 has 48 divisors (see below), whose sum is σ = 23159812633776. Its totient is φ = 3471405935040.

The previous prime is 10551556516451. The next prime is 10551556516537. The reversal of 10551556516518 is 81561565515501.

10551556516518 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 1 + 5 + 565 + 1 + 65 + 18 = 666.

10551556516518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10551556516518² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933305 + ... + 4984052.

It is an arithmetic number, because the mean of its divisors is an integer number (482496096537).

Almost surely, 2^{10551556516518} is an apocalyptic number.

10551556516518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10551556516518 is an abundant number, since it is smaller than the sum of its proper divisors (12608256117258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10551556516518 is a wasteful number, since it uses less digits than its factorization.

10551556516518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918469 (or 6918466 counting only the distinct ones).

The product of its (nonzero) digits is 4500000, while the sum is 54.

The spelling of 10551556516518 in words is "ten trillion, five hundred fifty-one billion, five hundred fifty-six million, five hundred sixteen thousand, five hundred eighteen".