11353216644 has 72 divisors (see below), whose sum is σ = 35779843008. Its totient is φ = 2948886720.

The previous prime is 11353216627. The next prime is 11353216657. The reversal of 11353216644 is 44661235311.

11353216644 is a `hidden beast` number, since 1 + 1 + 3 + 5 + 3 + 2 + 1 + 6 + 644 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 11353216599 and 11353216608.

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, 2045067 + ... + 2050610.

It is an arithmetic number, because the mean of its divisors is an integer number (496942264).

Almost surely, 2^11353216644 is an apocalyptic number.

11353216644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11353216644 is an abundant number, since it is smaller than the sum of its proper divisors (24426626364).

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

11353216644 is a wasteful number, since it uses less digits than its factorization.

11353216644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095705 (or 4095700 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 11353216644 in words is "eleven billion, three hundred fifty-three million, two hundred sixteen thousand, six hundred forty-four".