18650969120 has 96 divisors (see below), whose sum is σ = 50578214400. Its totient is φ = 6366606336.

The previous prime is 18650969119. The next prime is 18650969147. The reversal of 18650969120 is 2196905681.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220121 + ... + 292839.

It is an arithmetic number, because the mean of its divisors is an integer number (526856400).

Almost surely, 2^18650969120 is an apocalyptic number.

18650969120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18650969120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25289107200).

18650969120 is an abundant number, since it is smaller than the sum of its proper divisors (31927245280).

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

18650969120 is a wasteful number, since it uses less digits than its factorization.

18650969120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72970 (or 72962 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 18650969120 in words is "eighteen billion, six hundred fifty million, nine hundred sixty-nine thousand, one hundred twenty".