10646144253550 has 48 divisors (see below), whose sum is σ = 21325692224592. Its totient is φ = 3930764889600.

The previous prime is 10646144253527. The next prime is 10646144253551. The reversal of 10646144253550 is 5535244164601.

It is a super-2 number, since 2×10646144253550² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10646144253550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646144253551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22868605 + ... + 23329495.

It is an arithmetic number, because the mean of its divisors is an integer number (444285254679).

Almost surely, 2^{10646144253550} is an apocalyptic number.

10646144253550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10646144253550 is an abundant number, since it is smaller than the sum of its proper divisors (10679547971042).

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

10646144253550 is a wasteful number, since it uses less digits than its factorization.

10646144253550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496453 (or 496448 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 10646144253550 in words is "ten trillion, six hundred forty-six billion, one hundred forty-four million, two hundred fifty-three thousand, five hundred fifty".