11398042656 has 960 divisors, whose sum is σ = 47210397696. Its totient is φ = 2600294400.

The previous prime is 11398042619. The next prime is 11398042687. The reversal of 11398042656 is 65624089311.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 59675521 + ... + 59675711.

Almost surely, 2^11398042656 is an apocalyptic number.

11398042656 is a gapful number since it is divisible by the number (16) 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 11398042656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23605198848).

11398042656 is an abundant number, since it is smaller than the sum of its proper divisors (35812355040).

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

11398042656 is a wasteful number, since it uses less digits than its factorization.

11398042656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 11398042656 in words is "eleven billion, three hundred ninety-eight million, forty-two thousand, six hundred fifty-six".