18002185465 has 16 divisors (see below), whose sum is σ = 23664301056. Its totient is φ = 13038163200.

The previous prime is 18002185451. The next prime is 18002185469. The reversal of 18002185465 is 56458120081.

It is a happy number.

It is not a de Polignac number, because 18002185465 - 2¹⁵ = 18002152697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18002185469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665817 + ... + 692326.

It is an arithmetic number, because the mean of its divisors is an integer number (1479018816).

Almost surely, 2^18002185465 is an apocalyptic number.

It is an amenable number.

18002185465 is a deficient number, since it is larger than the sum of its proper divisors (5662115591).

18002185465 is a wasteful number, since it uses less digits than its factorization.

18002185465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358400.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 18002185465 in words is "eighteen billion, two million, one hundred eighty-five thousand, four hundred sixty-five".