11800662120 has 512 divisors, whose sum is σ = 46061568000. Its totient is φ = 2661258240.

The previous prime is 11800662119. The next prime is 11800662131. The reversal of 11800662120 is 2126600811.

11800662120 is a `hidden beast` number, since 1 + 18 + 0 + 0 + 6 + 621 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8268847 + ... + 8270273.

It is an arithmetic number, because the mean of its divisors is an integer number (89964000).

Almost surely, 2^11800662120 is an apocalyptic number.

11800662120 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 11800662120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23030784000).

11800662120 is an abundant number, since it is smaller than the sum of its proper divisors (34260905880).

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

11800662120 is a wasteful number, since it uses less digits than its factorization.

11800662120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 11800662120 in words is "eleven billion, eight hundred million, six hundred sixty-two thousand, one hundred twenty".