11597720992 has 288 divisors, whose sum is σ = 29396183040. Its totient is φ = 4447872000.

The previous prime is 11597720957. The next prime is 11597721001. The reversal of 11597720992 is 29902779511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35038267 + ... + 35038597.

It is an arithmetic number, because the mean of its divisors is an integer number (102070080).

Almost surely, 2^11597720992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11597720992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14698091520).

11597720992 is an abundant number, since it is smaller than the sum of its proper divisors (17798462048).

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

11597720992 is a wasteful number, since it uses less digits than its factorization.

11597720992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 52.

The spelling of 11597720992 in words is "eleven billion, five hundred ninety-seven million, seven hundred twenty thousand, nine hundred ninety-two".