11800043955 has 320 divisors, whose sum is σ = 26763264000. Its totient is φ = 4854650112.

The previous prime is 11800043929. The next prime is 11800043963. The reversal of 11800043955 is 55934000811.

It is not a de Polignac number, because 11800043955 - 2¹³ = 11800035763 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 149367606 + ... + 149367684.

It is an arithmetic number, because the mean of its divisors is an integer number (83635200).

Almost surely, 2^11800043955 is an apocalyptic number.

11800043955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11800043955 is an abundant number, since it is smaller than the sum of its proper divisors (14963220045).

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

11800043955 is a wasteful number, since it uses less digits than its factorization.

11800043955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 11800043955 in words is "eleven billion, eight hundred million, forty-three thousand, nine hundred fifty-five".