11644995860 has 24 divisors (see below), whose sum is σ = 24467982336. Its totient is φ = 4655428640.

The previous prime is 11644995853. The next prime is 11644995919. The reversal of 11644995860 is 6859944611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123236 + ... + 196155.

It is an arithmetic number, because the mean of its divisors is an integer number (1019499264).

Almost surely, 2^11644995860 is an apocalyptic number.

11644995860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11644995860 is an abundant number, since it is smaller than the sum of its proper divisors (12822986476).

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

11644995860 is a wasteful number, since it uses less digits than its factorization.

11644995860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321223 (or 321221 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 11644995860 in words is "eleven billion, six hundred forty-four million, nine hundred ninety-five thousand, eight hundred sixty".