18330046956 has 144 divisors (see below), whose sum is σ = 53010161568. Its totient is φ = 5502297600.

The previous prime is 18330046951. The next prime is 18330046967. The reversal of 18330046956 is 65964003381.

18330046956 is a `hidden beast` number, since 183 + 3 + 0 + 0 + 469 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (18330046951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 500386 + ... + 535766.

It is an arithmetic number, because the mean of its divisors is an integer number (368126122).

Almost surely, 2^18330046956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18330046956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26505080784).

18330046956 is an abundant number, since it is smaller than the sum of its proper divisors (34680114612).

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

18330046956 is a wasteful number, since it uses less digits than its factorization.

18330046956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35454 (or 35440 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 18330046956 in words is "eighteen billion, three hundred thirty million, forty-six thousand, nine hundred fifty-six".