10665501550 has 48 divisors (see below), whose sum is σ = 21668863104. Its totient is φ = 3873420000.

The previous prime is 10665501533. The next prime is 10665501551. The reversal of 10665501550 is 5510556601.

It is a super-2 number, since 2×10665501550² (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 (10665501551) 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, 434095 + ... + 458005.

It is an arithmetic number, because the mean of its divisors is an integer number (451434648).

Almost surely, 2^10665501550 is an apocalyptic number.

10665501550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10665501550 is an abundant number, since it is smaller than the sum of its proper divisors (11003361554).

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

10665501550 is a wasteful number, since it uses less digits than its factorization.

10665501550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24745 (or 24740 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

It can be divided in two parts, 10665 and 501550, that added together give a palindrome (512215).

The spelling of 10665501550 in words is "ten billion, six hundred sixty-five million, five hundred one thousand, five hundred fifty".