11621453600 has 144 divisors (see below), whose sum is σ = 29594105856. Its totient is φ = 4451328000.

The previous prime is 11621453587. The next prime is 11621453749. The reversal of 11621453600 is 635412611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2403185 + ... + 2408015.

It is an arithmetic number, because the mean of its divisors is an integer number (205514624).

Almost surely, 2^11621453600 is an apocalyptic number.

11621453600 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 11621453600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14797052928).

11621453600 is an abundant number, since it is smaller than the sum of its proper divisors (17972652256).

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

11621453600 is a wasteful number, since it uses less digits than its factorization.

11621453600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4966 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 11621453600 in words is "eleven billion, six hundred twenty-one million, four hundred fifty-three thousand, six hundred".