20135147706552 has 128 divisors (see below), whose sum is σ = 51236420659200. Its totient is φ = 6592232179200.

The previous prime is 20135147706551. The next prime is 20135147706563. The reversal of 20135147706552 is 25560774153102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135147706551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5807655523 + ... + 5807658989.

It is an arithmetic number, because the mean of its divisors is an integer number (400284536400).

Almost surely, 2^{20135147706552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20135147706552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25618210329600).

20135147706552 is an abundant number, since it is smaller than the sum of its proper divisors (31101272952648).

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

20135147706552 is a wasteful number, since it uses less digits than its factorization.

20135147706552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8073 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 20135147706552 in words is "twenty trillion, one hundred thirty-five billion, one hundred forty-seven million, seven hundred six thousand, five hundred fifty-two".