11001999257344 has 144 divisors (see below), whose sum is σ = 23243993539200. Its totient is φ = 5189248483328.

The previous prime is 11001999257299. The next prime is 11001999257393. The reversal of 11001999257344 is 44375299910011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93981312 + ... + 94098304.

It is an arithmetic number, because the mean of its divisors is an integer number (161416621800).

Almost surely, 2^{11001999257344} 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 11001999257344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11621996769600).

11001999257344 is an abundant number, since it is smaller than the sum of its proper divisors (12241994281856).

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

11001999257344 is a wasteful number, since it uses less digits than its factorization.

11001999257344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117330 (or 117316 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 11001999257344 in words is "eleven trillion, one billion, nine hundred ninety-nine million, two hundred fifty-seven thousand, three hundred forty-four".