11700122640 has 80 divisors (see below), whose sum is σ = 36353328000. Its totient is φ = 3112897536.

The previous prime is 11700122627. The next prime is 11700122657. The reversal of 11700122640 is 4622100711.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11700122640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49836 + ... + 160884.

It is an arithmetic number, because the mean of its divisors is an integer number (454416600).

Almost surely, 2^11700122640 is an apocalyptic number.

11700122640 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 11700122640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18176664000).

11700122640 is an abundant number, since it is smaller than the sum of its proper divisors (24653205360).

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

11700122640 is a wasteful number, since it uses less digits than its factorization.

11700122640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111504 (or 111498 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The spelling of 11700122640 in words is "eleven billion, seven hundred million, one hundred twenty-two thousand, six hundred forty".