11665465123420 has 48 divisors (see below), whose sum is σ = 24565247229600. Its totient is φ = 4653295223040.

The previous prime is 11665465123349. The next prime is 11665465123441. The reversal of 11665465123420 is 2432156456611.

11665465123420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9922410 + ... + 11035630.

It is an arithmetic number, because the mean of its divisors is an integer number (511775983950).

Almost surely, 2^{11665465123420} is an apocalyptic number.

11665465123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11665465123420 is an abundant number, since it is smaller than the sum of its proper divisors (12899782106180).

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

11665465123420 is a wasteful number, since it uses less digits than its factorization.

11665465123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114678 (or 1114676 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 11665465123420 in words is "eleven trillion, six hundred sixty-five billion, four hundred sixty-five million, one hundred twenty-three thousand, four hundred twenty".