13455662220 has 1152 divisors, whose sum is σ = 59259863040. Its totient is φ = 2463436800.

The previous prime is 13455662219. The next prime is 13455662267. The reversal of 13455662220 is 2226655431.

13455662220 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 5 + 6 + 622 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 184324104 + ... + 184324176.

Almost surely, 2^13455662220 is an apocalyptic number.

13455662220 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 13455662220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29629931520).

13455662220 is an abundant number, since it is smaller than the sum of its proper divisors (45804200820).

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

13455662220 is a wasteful number, since it uses less digits than its factorization.

13455662220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 13455662220 in words is "thirteen billion, four hundred fifty-five million, six hundred sixty-two thousand, two hundred twenty".