11700707720 has 128 divisors (see below), whose sum is σ = 29828736000. Its totient is φ = 4100275200.

The previous prime is 11700707717. The next prime is 11700707723. The reversal of 11700707720 is 2770700711.

It is an interprime number because it is at equal distance from previous prime (11700707717) and next prime (11700707723).

It is a super-2 number, since 2×11700707720² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11700707723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 883145 + ... + 896295.

It is an arithmetic number, because the mean of its divisors is an integer number (233037000).

Almost surely, 2^11700707720 is an apocalyptic number.

11700707720 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 11700707720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14914368000).

11700707720 is an abundant number, since it is smaller than the sum of its proper divisors (18128028280).

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

11700707720 is a wasteful number, since it uses less digits than its factorization.

11700707720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13263 (or 13259 counting only the distinct ones).

The product of its (nonzero) digits is 4802, while the sum is 32.

The spelling of 11700707720 in words is "eleven billion, seven hundred million, seven hundred seven thousand, seven hundred twenty".