18161936410 has 16 divisors (see below), whose sum is σ = 34412090400. Its totient is φ = 6882417936.

The previous prime is 18161936399. The next prime is 18161936431. The reversal of 18161936410 is 1463916181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47794380 + ... + 47794759.

It is an arithmetic number, because the mean of its divisors is an integer number (2150755650).

Almost surely, 2^18161936410 is an apocalyptic number.

18161936410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18161936410 is a deficient number, since it is larger than the sum of its proper divisors (16250153990).

18161936410 is a wasteful number, since it uses less digits than its factorization.

18161936410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95589165.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 18161936410 in words is "eighteen billion, one hundred sixty-one million, nine hundred thirty-six thousand, four hundred ten".