11154990320 has 40 divisors (see below), whose sum is σ = 25989586560. Its totient is φ = 4452665600.

The previous prime is 11154990299. The next prime is 11154990337. The reversal of 11154990320 is 2309945111.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107231 + ... + 183870.

It is an arithmetic number, because the mean of its divisors is an integer number (649739664).

Almost surely, 2^11154990320 is an apocalyptic number.

11154990320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11154990320 is an abundant number, since it is smaller than the sum of its proper divisors (14834596240).

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

11154990320 is a wasteful number, since it uses less digits than its factorization.

11154990320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291593 (or 291587 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 11154990320 in words is "eleven billion, one hundred fifty-four million, nine hundred ninety thousand, three hundred twenty".