20005153734757 has 8 divisors (see below), whose sum is σ = 20203607463552. Its totient is φ = 19806707514000.

The previous prime is 20005153734733. The next prime is 20005153734773. The reversal of 20005153734757 is 75743735150002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20005153734757 - 2²³ = 20005145346149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20005153734757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005153731757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3556032 + ... + 7256422.

It is an arithmetic number, because the mean of its divisors is an integer number (2525450932944).

Almost surely, 2^{20005153734757} is an apocalyptic number.

It is an amenable number.

20005153734757 is a deficient number, since it is larger than the sum of its proper divisors (198453728795).

20005153734757 is a wasteful number, since it uses less digits than its factorization.

20005153734757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3754019.

The product of its (nonzero) digits is 3087000, while the sum is 49.

Adding to 20005153734757 its reverse (75743735150002), we get a palindrome (95748888884759).

The spelling of 20005153734757 in words is "twenty trillion, five billion, one hundred fifty-three million, seven hundred thirty-four thousand, seven hundred fifty-seven".