11813595666420 has 96 divisors (see below), whose sum is σ = 33849603849600. Its totient is φ = 3076822425600.

The previous prime is 11813595666419. The next prime is 11813595666451. The reversal of 11813595666420 is 2466659531811.

It is a super-2 number, since 2×11813595666420² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40228120 + ... + 40520720.

It is an arithmetic number, because the mean of its divisors is an integer number (352600040100).

Almost surely, 2^{11813595666420} is an apocalyptic number.

11813595666420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11813595666420 is an abundant number, since it is smaller than the sum of its proper divisors (22036008183180).

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

11813595666420 is a wasteful number, since it uses less digits than its factorization.

11813595666420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308305 (or 308303 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 11813595666420 in words is "eleven trillion, eight hundred thirteen billion, five hundred ninety-five million, six hundred sixty-six thousand, four hundred twenty".