13366464420 has 96 divisors (see below), whose sum is σ = 38683588608. Its totient is φ = 3446461312.

The previous prime is 13366464383. The next prime is 13366464427. The reversal of 13366464420 is 2446466331.

It is a super-2 number, since 2×13366464420² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13366464427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205507 + ... + 262613.

It is an arithmetic number, because the mean of its divisors is an integer number (402954048).

Almost surely, 2^13366464420 is an apocalyptic number.

13366464420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13366464420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19341794304).

13366464420 is an abundant number, since it is smaller than the sum of its proper divisors (25317124188).

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

13366464420 is a wasteful number, since it uses less digits than its factorization.

13366464420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57249 (or 57247 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 13366464420 in words is "thirteen billion, three hundred sixty-six million, four hundred sixty-four thousand, four hundred twenty".