10997384661000 has 768 divisors, whose sum is σ = 40677808953600. Its totient is φ = 2771366400000.

The previous prime is 10997384660963. The next prime is 10997384661041. The reversal of 10997384661000 is 16648379901.

10997384661000 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 73 + 8 + 466 + 100 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 191 ways as a sum of consecutive naturals, for example, 1999158250 + ... + 1999163750.

It is an arithmetic number, because the mean of its divisors is an integer number (52965897075).

Almost surely, 2^{10997384661000} is an apocalyptic number.

10997384661000 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 10997384661000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20338904476800).

10997384661000 is an abundant number, since it is smaller than the sum of its proper divisors (29680424292600).

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

10997384661000 is a wasteful number, since it uses less digits than its factorization.

10997384661000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989 (or 5963 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 10997384661000 in words is "ten trillion, nine hundred ninety-seven billion, three hundred eighty-four million, six hundred sixty-one thousand".