20755001111 has 8 divisors (see below), whose sum is σ = 22560434064. Its totient is φ = 18979410240.

The previous prime is 20755001093. The next prime is 20755001117. The reversal of 20755001111 is 11110055702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20755001111 is a prime.

It is a super-2 number, since 2×20755001111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20755001117) 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 7 ways as a sum of consecutive naturals, for example, 7459070 + ... + 7461851.

It is an arithmetic number, because the mean of its divisors is an integer number (2820054258).

Almost surely, 2^20755001111 is an apocalyptic number.

20755001111 is a deficient number, since it is larger than the sum of its proper divisors (1805432953).

20755001111 is a wasteful number, since it uses less digits than its factorization.

20755001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921041.

The product of its (nonzero) digits is 350, while the sum is 23.

Adding to 20755001111 its reverse (11110055702), we get a palindrome (31865056813).

The spelling of 20755001111 in words is "twenty billion, seven hundred fifty-five million, one thousand, one hundred eleven".