10555720644735 has 96 divisors (see below), whose sum is σ = 21493737562752. Its totient is φ = 4691072517120.

The previous prime is 10555720644709. The next prime is 10555720644793. The reversal of 10555720644735 is 53744602755501.

It is a happy number.

10555720644735 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 572 + 0 + 64 + 4 + 7 + 3 + 5 = 666.

It is not a de Polignac number, because 10555720644735 - 2¹³ = 10555720636543 is a prime.

It is a super-3 number, since 3×10555720644735³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13381117 + ... + 14147993.

It is an arithmetic number, because the mean of its divisors is an integer number (223893099612).

Almost surely, 2^{10555720644735} is an apocalyptic number.

10555720644735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10555720644735 is an abundant number, since it is smaller than the sum of its proper divisors (10938016918017).

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

10555720644735 is a wasteful number, since it uses less digits than its factorization.

10555720644735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768113 (or 768110 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 54.

The spelling of 10555720644735 in words is "ten trillion, five hundred fifty-five billion, seven hundred twenty million, six hundred forty-four thousand, seven hundred thirty-five".