65505000111 has 8 divisors (see below), whose sum is σ = 87341183280. Its totient is φ = 43669408512.

The previous prime is 65505000107. The next prime is 65505000131. The reversal of 65505000111 is 11100050556.

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

It is not a de Polignac number, because 65505000111 - 2² = 65505000107 is a prime.

It is a super-2 number, since 2×65505000111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505000131) 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, 348511 + ... + 502463.

It is an arithmetic number, because the mean of its divisors is an integer number (10917647910).

Almost surely, 2^65505000111 is an apocalyptic number.

65505000111 is a deficient number, since it is larger than the sum of its proper divisors (21836183169).

65505000111 is a wasteful number, since it uses less digits than its factorization.

65505000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295785.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 65505000111 its reverse (11100050556), we get a palindrome (76605050667).

The spelling of 65505000111 in words is "sixty-five billion, five hundred five million, one hundred eleven", and thus it is an aban number.