11644204896 has 120 divisors (see below), whose sum is σ = 34437969720. Its totient is φ = 3859564032.

The previous prime is 11644204889. The next prime is 11644204933. The reversal of 11644204896 is 69840244611.

11644204896 is a `hidden beast` number, since 1 + 164 + 4 + 2 + 0 + 489 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 451420 + ... + 476516.

It is an arithmetic number, because the mean of its divisors is an integer number (286983081).

Almost surely, 2^11644204896 is an apocalyptic number.

11644204896 is a gapful number since it is divisible by the number (16) 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 11644204896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17218984860).

11644204896 is an abundant number, since it is smaller than the sum of its proper divisors (22793764824).

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

11644204896 is a wasteful number, since it uses less digits than its factorization.

11644204896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25298 (or 25281 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 11644204896 in words is "eleven billion, six hundred forty-four million, two hundred four thousand, eight hundred ninety-six".