61532161341320 has 64 divisors (see below), whose sum is σ = 138573036455040. Its totient is φ = 24590530048000.

The previous prime is 61532161341269. The next prime is 61532161341323. The reversal of 61532161341320 is 2314316123516.

It is not an unprimeable number, because it can be changed into a prime (61532161341323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271107485 + ... + 271334355.

It is an arithmetic number, because the mean of its divisors is an integer number (2165203694610).

Almost surely, 2^{61532161341320} is an apocalyptic number.

It is an amenable number.

61532161341320 is an abundant number, since it is smaller than the sum of its proper divisors (77040875113720).

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

61532161341320 is a wasteful number, since it uses less digits than its factorization.

61532161341320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233006 (or 233002 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 61532161341320 its reverse (2314316123516), we get a palindrome (63846477464836).

The spelling of 61532161341320 in words is "sixty-one trillion, five hundred thirty-two billion, one hundred sixty-one million, three hundred forty-one thousand, three hundred twenty".