20354916330 has 128 divisors (see below), whose sum is σ = 62138764800. Its totient is φ = 4644698112.

The previous prime is 20354916319. The next prime is 20354916331. The reversal of 20354916330 is 3361945302.

It is a happy number.

20354916330 is a `hidden beast` number, since 20 + 3 + 549 + 1 + 63 + 30 = 666.

It is not an unprimeable number, because it can be changed into a prime (20354916331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1149786 + ... + 1167354.

It is an arithmetic number, because the mean of its divisors is an integer number (485459100).

Almost surely, 2^20354916330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20354916330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31069382400).

20354916330 is an abundant number, since it is smaller than the sum of its proper divisors (41783848470).

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

20354916330 is a wasteful number, since it uses less digits than its factorization.

20354916330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18205 (or 18199 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 20354916330 in words is "twenty billion, three hundred fifty-four million, nine hundred sixteen thousand, three hundred thirty".