13466633220 has 72 divisors (see below), whose sum is σ = 41952829464. Its totient is φ = 3494043648.

The previous prime is 13466633189. The next prime is 13466633233. The reversal of 13466633220 is 2233666431.

It can be written as a sum of positive squares in 4 ways, for example, as 1048205376 + 12418427844 = 32376^2 + 111438^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1004349 + ... + 1017668.

It is an arithmetic number, because the mean of its divisors is an integer number (582678187).

Almost surely, 2^13466633220 is an apocalyptic number.

13466633220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13466633220 is an abundant number, since it is smaller than the sum of its proper divisors (28486196244).

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

13466633220 is a wasteful number, since it uses less digits than its factorization.

13466633220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022069 (or 2022064 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 13466633220 in words is "thirteen billion, four hundred sixty-six million, six hundred thirty-three thousand, two hundred twenty".