20218914330 has 32 divisors (see below), whose sum is σ = 49653895104. Its totient is φ = 5266321536.

The previous prime is 20218914323. The next prime is 20218914367. The reversal of 20218914330 is 3341981202.

It is a junction number, because it is equal to n+sod(n) for n = 20218914291 and 20218914300.

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, 7835499 + ... + 7838078.

It is an arithmetic number, because the mean of its divisors is an integer number (1551684222).

Almost surely, 2^20218914330 is an apocalyptic number.

20218914330 is an abundant number, since it is smaller than the sum of its proper divisors (29434980774).

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

20218914330 is a wasteful number, since it uses less digits than its factorization.

20218914330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15673630.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 20218914330 in words is "twenty billion, two hundred eighteen million, nine hundred fourteen thousand, three hundred thirty".