10550215998 has 48 divisors (see below), whose sum is σ = 26183454336. Its totient is φ = 3007527120.

The previous prime is 10550215993. The next prime is 10550216077. The reversal of 10550215998 is 89951205501.

10550215998 is a `hidden beast` number, since 1 + 0 + 5 + 50 + 2 + 1 + 599 + 8 = 666.

It is a super-2 number, since 2×10550215998² (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 (10550215993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38688 + ... + 150323.

It is an arithmetic number, because the mean of its divisors is an integer number (545488632).

Almost surely, 2^10550215998 is an apocalyptic number.

10550215998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10550215998 is an abundant number, since it is smaller than the sum of its proper divisors (15633238338).

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

10550215998 is a wasteful number, since it uses less digits than its factorization.

10550215998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189469 (or 189466 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 10550215998 in words is "ten billion, five hundred fifty million, two hundred fifteen thousand, nine hundred ninety-eight".