18000546916 has 48 divisors (see below), whose sum is σ = 35383626432. Its totient is φ = 7940592000.

The previous prime is 18000546887. The next prime is 18000546919. The reversal of 18000546916 is 61964500081.

It is a super-2 number, since 2×18000546916² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18000546919) 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, 632391 + ... + 660241.

It is an arithmetic number, because the mean of its divisors is an integer number (737158884).

Almost surely, 2^18000546916 is an apocalyptic number.

It is an amenable number.

18000546916 is a deficient number, since it is larger than the sum of its proper divisors (17383079516).

18000546916 is a wasteful number, since it uses less digits than its factorization.

18000546916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28300 (or 28298 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 18000546916 in words is "eighteen billion, five hundred forty-six thousand, nine hundred sixteen".