20144646753111 has 48 divisors (see below), whose sum is σ = 32081603613696. Its totient is φ = 12603486763296.

The previous prime is 20144646753059. The next prime is 20144646753223. The reversal of 20144646753111 is 11135764644102.

20144646753111 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 46 + 4 + 67 + 531 + 11 = 666.

It is not a de Polignac number, because 20144646753111 - 2¹³ = 20144646744919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144646753811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33706975 + ... + 34299408.

It is an arithmetic number, because the mean of its divisors is an integer number (668366741952).

Almost surely, 2^{20144646753111} is an apocalyptic number.

20144646753111 is a deficient number, since it is larger than the sum of its proper divisors (11936956860585).

20144646753111 is an equidigital number, since it uses as much as digits as its factorization.

20144646753111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68006474 (or 68006462 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 20144646753111 in words is "twenty trillion, one hundred forty-four billion, six hundred forty-six million, seven hundred fifty-three thousand, one hundred eleven".