11156797440000 has 750 divisors, whose sum is σ = 41654309919684. Its totient is φ = 2974924800000.

The previous prime is 11156797439969. The next prime is 11156797440017. The reversal of 11156797440000 is 4479765111.

11156797440000 is a `hidden beast` number, since 1 + 1 + 156 + 7 + 97 + 4 + 400 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (750).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 829433275 + ... + 829446725.

Almost surely, 2^{11156797440000} is an apocalyptic number.

11156797440000 is a gapful number since it is divisible by the number (10) 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 11156797440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20827154959842).

11156797440000 is an abundant number, since it is smaller than the sum of its proper divisors (30497512479684).

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

11156797440000 is an frugal number, since it uses more digits than its factorization.

11156797440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13511 (or 13461 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 11156797440000 in words is "eleven trillion, one hundred fifty-six billion, seven hundred ninety-seven million, four hundred forty thousand".