20350016652340 has 24 divisors (see below), whose sum is σ = 42755279035392. Its totient is φ = 8136150648480.

The previous prime is 20350016652299. The next prime is 20350016652367. The reversal of 20350016652340 is 4325661005302.

It is a self number, because there is not a number n which added to its sum of digits gives 20350016652340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240957504 + ... + 241041943.

It is an arithmetic number, because the mean of its divisors is an integer number (1781469959808).

Almost surely, 2^{20350016652340} is an apocalyptic number.

20350016652340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350016652340 is an abundant number, since it is smaller than the sum of its proper divisors (22405262383052).

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

20350016652340 is a wasteful number, since it uses less digits than its factorization.

20350016652340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482001567 (or 482001565 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20350016652340 its reverse (4325661005302), we get a palindrome (24675677657642).

The spelling of 20350016652340 in words is "twenty trillion, three hundred fifty billion, sixteen million, six hundred fifty-two thousand, three hundred forty".