65551060000 has 120 divisors (see below), whose sum is σ = 162355139100. Its totient is φ = 26043264000.

The previous prime is 65551059989. The next prime is 65551060031. The reversal of 65551060000 is 6015556.

It can be written as a sum of positive squares in 10 ways, for example, as 11118437136 + 54432622864 = 105444^2 + 233308^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2969002 + ... + 2990998.

Almost surely, 2^65551060000 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 65551060000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81177569550).

65551060000 is an abundant number, since it is smaller than the sum of its proper divisors (96804079100).

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

65551060000 is a wasteful number, since it uses less digits than its factorization.

65551060000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22176 (or 22153 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 65551060000 its reverse (6015556), we get a palindrome (65557075556).

The spelling of 65551060000 in words is "sixty-five billion, five hundred fifty-one million, sixty thousand".