18116143430 has 64 divisors (see below), whose sum is σ = 42423118848. Its totient is φ = 5401080960.

The previous prime is 18116143387. The next prime is 18116143439. The reversal of 18116143430 is 3434161181.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116143439) 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, 493757 + ... + 529176.

It is an arithmetic number, because the mean of its divisors is an integer number (662861232).

Almost surely, 2^18116143430 is an apocalyptic number.

18116143430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18116143430 is an abundant number, since it is smaller than the sum of its proper divisors (24306975418).

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

18116143430 is a wasteful number, since it uses less digits than its factorization.

18116143430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022981.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 18116143430 in words is "eighteen billion, one hundred sixteen million, one hundred forty-three thousand, four hundred thirty".