132724143661 has 8 divisors (see below), whose sum is σ = 137305625400. Its totient is φ = 128142981120.

The previous prime is 132724143647. The next prime is 132724143679. The reversal of 132724143661 is 166341427231.

It can be written as a sum of positive squares in 4 ways, for example, as 22028199561 + 110695944100 = 148419^2 + 332710^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 132724143661 - 2⁷ = 132724143533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132724143631) 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, 1026141 + ... + 1148221.

It is an arithmetic number, because the mean of its divisors is an integer number (17163203175).

Almost surely, 2^132724143661 is an apocalyptic number.

It is an amenable number.

132724143661 is a deficient number, since it is larger than the sum of its proper divisors (4581481739).

132724143661 is a wasteful number, since it uses less digits than its factorization.

132724143661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159599.

The product of its digits is 145152, while the sum is 40.

The spelling of 132724143661 in words is "one hundred thirty-two billion, seven hundred twenty-four million, one hundred forty-three thousand, six hundred sixty-one".