10533216645 has 48 divisors (see below), whose sum is σ = 21782992320. Its totient is φ = 4815181728.

The previous prime is 10533216619. The next prime is 10533216667. The reversal of 10533216645 is 54661233501.

10533216645 is a `hidden beast` number, since 1 + 0 + 5 + 3 + 3 + 2 + 1 + 6 + 645 = 666.

It is not a de Polignac number, because 10533216645 - 2²² = 10529022341 is a prime.

It is a super-2 number, since 2×10533216645² (a number of 21 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 47 ways as a sum of consecutive naturals, for example, 789547 + ... + 802776.

It is an arithmetic number, because the mean of its divisors is an integer number (453812340).

Almost surely, 2^10533216645 is an apocalyptic number.

10533216645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10533216645 is an abundant number, since it is smaller than the sum of its proper divisors (11249775675).

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

10533216645 is a wasteful number, since it uses less digits than its factorization.

10533216645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592351 (or 1592338 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 10533216645 in words is "ten billion, five hundred thirty-three million, two hundred sixteen thousand, six hundred forty-five".