18045665750 has 192 divisors, whose sum is σ = 42371776512. Its totient is φ = 5630400000.

The previous prime is 18045665717. The next prime is 18045665809. The reversal of 18045665750 is 5756654081.

It is a junction number, because it is equal to n+sod(n) for n = 18045665695 and 18045665704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15677675 + ... + 15678825.

It is an arithmetic number, because the mean of its divisors is an integer number (220686336).

Almost surely, 2^18045665750 is an apocalyptic number.

18045665750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18045665750 is an abundant number, since it is smaller than the sum of its proper divisors (24326110762).

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

18045665750 is a wasteful number, since it uses less digits than its factorization.

18045665750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 18045665750 in words is "eighteen billion, forty-five million, six hundred sixty-five thousand, seven hundred fifty".