130444052661 has 12 divisors (see below), whose sum is σ = 202912970988. Its totient is φ = 80273263104.

The previous prime is 130444052647. The next prime is 130444052693. The reversal of 130444052661 is 166250444031.

130444052661 is a `hidden beast` number, since 1 + 30 + 4 + 4 + 40 + 526 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14043672036 + 116400380625 = 118506^2 + 341175^2 .

It is not a de Polignac number, because 130444052661 - 2⁶ = 130444052597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444052621) 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 11 ways as a sum of consecutive naturals, for example, 557453100 + ... + 557453333.

It is an arithmetic number, because the mean of its divisors is an integer number (16909414249).

Almost surely, 2^130444052661 is an apocalyptic number.

It is an amenable number.

130444052661 is a deficient number, since it is larger than the sum of its proper divisors (72468918327).

130444052661 is a wasteful number, since it uses less digits than its factorization.

130444052661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114906452 (or 1114906449 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 130444052661 its reverse (166250444031), we get a palindrome (296694496692).

The spelling of 130444052661 in words is "one hundred thirty billion, four hundred forty-four million, fifty-two thousand, six hundred sixty-one".