20163438350 has 24 divisors (see below), whose sum is σ = 40913450568. Its totient is φ = 7332159200.

The previous prime is 20163438331. The next prime is 20163438371. The reversal of 20163438350 is 5383436102.

It is a self number, because there is not a number n which added to its sum of digits gives 20163438350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18329849 + ... + 18330948.

It is an arithmetic number, because the mean of its divisors is an integer number (1704727107).

Almost surely, 2^20163438350 is an apocalyptic number.

20163438350 is an abundant number, since it is smaller than the sum of its proper divisors (20750012218).

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

20163438350 is a wasteful number, since it uses less digits than its factorization.

20163438350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36660820 (or 36660815 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20163438350 in words is "twenty billion, one hundred sixty-three million, four hundred thirty-eight thousand, three hundred fifty".