20351644134350 has 24 divisors (see below), whose sum is σ = 37854590544000. Its totient is φ = 8140543147520.

The previous prime is 20351644134307. The next prime is 20351644134379. The reversal of 20351644134350 is 5343144615302.

It is a happy number.

It is a super-3 number, since 3×20351644134350³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20351644134298 and 20351644134307.

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, 773294 + ... + 6426606.

It is an arithmetic number, because the mean of its divisors is an integer number (1577274606000).

Almost surely, 2^{20351644134350} is an apocalyptic number.

20351644134350 is a deficient number, since it is larger than the sum of its proper divisors (17502946409650).

20351644134350 is a wasteful number, since it uses less digits than its factorization.

20351644134350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725324 (or 5725319 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 20351644134350 its reverse (5343144615302), we get a palindrome (25694788749652).

The spelling of 20351644134350 in words is "twenty trillion, three hundred fifty-one billion, six hundred forty-four million, one hundred thirty-four thousand, three hundred fifty".