11947302720 has 168 divisors, whose sum is σ = 41614709760. Its totient is φ = 3145559040.

The previous prime is 11947302683. The next prime is 11947302737. The reversal of 11947302720 is 2720374911.

11947302720 is a `hidden beast` number, since 119 + 473 + 0 + 2 + 72 + 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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201265 + ... + 253775.

Almost surely, 2^11947302720 is an apocalyptic number.

11947302720 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 11947302720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20807354880).

11947302720 is an abundant number, since it is smaller than the sum of its proper divisors (29667407040).

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

11947302720 is a wasteful number, since it uses less digits than its factorization.

11947302720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52613 (or 52600 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 11947302720 in words is "eleven billion, nine hundred forty-seven million, three hundred two thousand, seven hundred twenty".