10685165910523 has 16 divisors (see below), whose sum is σ = 11694468764160. Its totient is φ = 9703624208544.

The previous prime is 10685165910509. The next prime is 10685165910547. The reversal of 10685165910523 is 32501956158601.

It is a cyclic number.

It is not a de Polignac number, because 10685165910523 - 2⁴¹ = 8486142654971 is a prime.

It is a super-2 number, since 2×10685165910523² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10685165910563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20459361 + ... + 20975122.

It is an arithmetic number, because the mean of its divisors is an integer number (730904297760).

Almost surely, 2^{10685165910523} is an apocalyptic number.

10685165910523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10685165910523 is a deficient number, since it is larger than the sum of its proper divisors (1009302853637).

10685165910523 is a wasteful number, since it uses less digits than its factorization.

10685165910523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41434818.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 10685165910523 in words is "ten trillion, six hundred eighty-five billion, one hundred sixty-five million, nine hundred ten thousand, five hundred twenty-three".