11156250000 has 400 divisors, whose sum is σ = 43593745536. Its totient is φ = 2400000000.

The previous prime is 11156249963. The next prime is 11156250011. The reversal of 11156250000 is 5265111.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 656249992 + ... + 656250008.

Almost surely, 2^11156250000 is an apocalyptic number.

11156250000 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 11156250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21796872768).

11156250000 is an abundant number, since it is smaller than the sum of its proper divisors (32437495536).

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

11156250000 is an frugal number, since it uses more digits than its factorization.

11156250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 11156250000 in words is "eleven billion, one hundred fifty-six million, two hundred fifty thousand".