16390630197050 has 24 divisors (see below), whose sum is σ = 30492678493596. Its totient is φ = 6554938890240.

The previous prime is 16390630197017. The next prime is 16390630197079. The reversal of 16390630197050 is 5079103609361.

It can be written as a sum of positive squares in 6 ways, for example, as 5752941363841 + 10637688833209 = 2398529^2 + 3261547^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 16390630197050.

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, 32577569 + ... + 33076868.

Almost surely, 2^{16390630197050} is an apocalyptic number.

16390630197050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16390630197050 is a deficient number, since it is larger than the sum of its proper divisors (14102048296546).

16390630197050 is a wasteful number, since it uses less digits than its factorization.

16390630197050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65659442 (or 65659437 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 16390630197050 in words is "sixteen trillion, three hundred ninety billion, six hundred thirty million, one hundred ninety-seven thousand, fifty".