11245725720 has 160 divisors (see below), whose sum is σ = 38602872000. Its totient is φ = 2935014912.

The previous prime is 11245725707. The next prime is 11245725773. The reversal of 11245725720 is 2752754211.

11245725720 is a `hidden beast` number, since 1 + 12 + 4 + 5 + 72 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 115356 + ... + 189204.

It is an arithmetic number, because the mean of its divisors is an integer number (241267950).

Almost surely, 2^11245725720 is an apocalyptic number.

11245725720 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 11245725720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19301436000).

11245725720 is an abundant number, since it is smaller than the sum of its proper divisors (27357146280).

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

11245725720 is a wasteful number, since it uses less digits than its factorization.

11245725720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73919 (or 73906 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 11245725720 in words is "eleven billion, two hundred forty-five million, seven hundred twenty-five thousand, seven hundred twenty".