65550120102 has 40 divisors (see below), whose sum is σ = 147422919072. Its totient is φ = 21769398000.

The previous prime is 65550120091. The next prime is 65550120109. The reversal of 65550120102 is 20102105556.

65550120102 is a `hidden beast` number, since 6 + 5 + 550 + 1 + 2 + 0 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65550120109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 702649 + ... + 790452.

Almost surely, 2^65550120102 is an apocalyptic number.

65550120102 is an abundant number, since it is smaller than the sum of its proper divisors (81872798970).

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

65550120102 is a wasteful number, since it uses less digits than its factorization.

65550120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493386 (or 1493377 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 65550120102 its reverse (20102105556), we get a palindrome (85652225658).

The spelling of 65550120102 in words is "sixty-five billion, five hundred fifty million, one hundred twenty thousand, one hundred two".