11650420521523 has 16 divisors (see below), whose sum is σ = 13347446505984. Its totient is φ = 9961587417600.

The previous prime is 11650420521511. The next prime is 11650420521527. The reversal of 11650420521523 is 32512502405611.

It is not a de Polignac number, because 11650420521523 - 2³³ = 11641830586931 is a prime.

It is a super-3 number, since 3×11650420521523³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11650420521527) 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, 5179986 + ... + 7080472.

It is an arithmetic number, because the mean of its divisors is an integer number (834215406624).

Almost surely, 2^{11650420521523} is an apocalyptic number.

11650420521523 is a deficient number, since it is larger than the sum of its proper divisors (1697025984461).

11650420521523 is a wasteful number, since it uses less digits than its factorization.

11650420521523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902642.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 11650420521523 in words is "eleven trillion, six hundred fifty billion, four hundred twenty million, five hundred twenty-one thousand, five hundred twenty-three".