11195826640 has 40 divisors (see below), whose sum is σ = 26038333440. Its totient is φ = 4476948096.

The previous prime is 11195826571. The next prime is 11195826641. The reversal of 11195826640 is 4662859111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11195826641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262321 + ... + 301999.

It is an arithmetic number, because the mean of its divisors is an integer number (650958336).

Almost surely, 2^11195826640 is an apocalyptic number.

11195826640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11195826640 is an abundant number, since it is smaller than the sum of its proper divisors (14842506800).

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

11195826640 is a wasteful number, since it uses less digits than its factorization.

11195826640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43219 (or 43213 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 11195826640 in words is "eleven billion, one hundred ninety-five million, eight hundred twenty-six thousand, six hundred forty".